2026-09-21T00:04:58Z https://publikasi.mercubuana.ac.id/index.php/ijimeam/oai

oai:ojs.pkp.sfu.ca:article/11356 2023-10-16T05:24:48Z ijimeam:ART driver

ENERGY AND COST SAVING OF AIR CONDITIONING SYSTEM USING MAGNETIC BEARING CHILLER FOR HOTEL A IN JAKARTA Marjianto, Agus Hafthirman, Hafthirman Darmanto, Prihadi Setyo Load Hotel Energy Magnetic Bearing Chiller The use of magnetic bearing chillers in hotel air conditioning systems is an opportunity for energy or cost savings. This study will compare the electrical energy consumption and cost analysis of the centralized air conditioning system using magnetic bearing chiller that uses variable flow to another air conditioning system such as the centralized air conditioning using constant flow chiller and the VRF split air conditioning system at Hotel A in Jakarta. The calculation of energy consumption for each air conditioning system is carried out for a year. Meanwhile, the cost analysis will be carried out using the life cycle cost method for 20 years. The air conditioning system which has the least energy consumption and has the lowest life cycle cost is the best air conditioning system for this hotel building. The maximum cooling load that occurs in Hotel A is 3,281 kW. From the results of energy calculations and cost analysis, a centralized air conditioning system with magnetic bearing chiller with variable flow is the best choice to Hotel A or similar building to Hotel A, with IKE (Intensitas Konsumsi Energi) value of 84 kWh/(m2.year), and a total cost of 78,873,678,478.00 IDR for a period of 20 years. Universitas Mercu Buana 2021-06-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11356 10.22441/ijimeam.v3i1.11356 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 1 (2021); 1-11 2477-5428 2477-541X 10.22441/ijimeam.v3i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11356/pdf Copyright (c) 2021 Agus Marjianto, Hafthirman Hafthirman, Prihadi Setyo Darmanto

oai:ojs.pkp.sfu.ca:article/11575 2023-10-16T05:24:48Z ijimeam:ART driver

CHARACTERIZATION OF IRON PRODUCTION FROM MILLS CALE BY CARBOTHERMIC REDUCTION Nurdiyansah, Lukman Faris Darsono, Nono Khaerudini, Deni Shidqi Millscale by product reduction iron Millscale is a large by product of metal factory. Many methods to recycled it to many applications. The aim of this research is recycled millscale to produce the iron by reduction method with graphite as reductant agent. The reduction process was deed by milled millscale and graphite powder with 4:1 weight ratio was by used High Energy Milling with 4, 6, 12 hours milling time variations. The powder then was characterized by X-Ray Diffraction (XRD), Vibrating Sample Magnetometer (VSM) and SEM-EDS test. The XRD test result is Fe3C as a main phase then carbon, magnetite, wustite and Iron as a minor phase. The percentage of iron composition is increase during milling times amount to 6; 10.9; 13 %. The remanence for the 4, 6, and 12 hours of milling time variation, is 2.89, 3.39, and 4.98 emu/g, for the coercivity (Hc) is 209.58, 188.47, and 223.65 Oe and the magnetic saturation number is 22.59, 30.7, 39.15 emu/g, from Hc value it is concluded that the powder has superparamagnetic behavior.  From SEM-EDS is knowed that the distribution of Fe is more uniform on the surface samples with the increase of milling time. Universitas Mercu Buana 2021-06-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11575 10.22441/ijimeam.v3i1.11575 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 1 (2021); 12-16 2477-5428 2477-541X 10.22441/ijimeam.v3i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11575/pdf Copyright (c) 2021 Lukman Faris Nurdiyansah, Nono Darsono, Deni Shidqi Khaerudini

oai:ojs.pkp.sfu.ca:article/11607 2023-10-16T05:24:48Z ijimeam:ART driver

DEVELOPMENT AND CHARACTERIZATION OF SOLID CU / CUSO4 REFERENCE ELECTRODES Dewi, Marysca Shintya Alva, Sagir Wan Jamil, Wan Adil Reference Electrodes Solids Electrodes Electrochemical Cells Ag/AgCl Cu/CuSO4 In this research, a solid Cu/CuSO4 reference electrode has been developed. In this development process, the Cu/CuSO4 solid reference electrode provided consists of two types, namely the Cu/CuSO4 I solid reference electrode (ERP Cu/CuSO4 I) and the Cu/CuSO4 II solid reference electrode (ERP Cu/CuSO4 II). ERP Cu/CuSO4 I was prepared using two layers, namely the Cu/CuSO4 layer and the cellulose acetate layer which were placed sequentially on the surface of the planar type Cu electrode. Meanwhile, ERP Cu/CuSO4 II was prepared using three layers, namely a layer of cotton fiber/cellulose acetate, a layer of Cu/CuSO4, and a layer of cotton/cellulose acetate placed in sequence on the surface of the planar type Cu electrode, where the CuSO4 layer is between the two layers of cotton/cellulose acetate. Both types of Cu/CuSO4 solid reference electrodes were characterized by testing DmV in various concentrations of KCl solution and ERP Cu/CuSO4 II has been produced as the best reference electrode for Cu/CuSO4 solids with a DmV value of 3.3 mV. Furthermore, ERP Cu/CuSO4 II was selected for characterization using cyclic voltammetry (CV) testing, response vs Cl sensor testing, and drif testing. In CV testing, ERP Cu/CuSO4 provides a voltammogram graph pattern similar to the Ag/AgCl reference electrode as a commercial reference electrode. Meanwhile, in testing the response vs sensor Cl, ERP Cu/CuSO4 II gave a Nernstian number value  of -50.1 mV/decade with a test range of 0.1-10-3 M. ERP Cu/CuSO4 II showed fairly good stability, namely with a drift value of 0.46 mV/minute which is achieved after the conditioning process after 12 minutes. Universitas Mercu Buana 2021-06-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11607 10.22441/ijimeam.v3i1.11607 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 1 (2021); 17-25 2477-5428 2477-541X 10.22441/ijimeam.v3i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11607/pdf Copyright (c) 2021 Marysca Shintya Dewi, Sagir Alva, Wan Adil Wan Jamil

oai:ojs.pkp.sfu.ca:article/11623 2023-10-16T05:23:22Z ijimeam:ART driver

FLOW FIELD PLATE DESIGN ANALYSIS WITH CROSS-SECTION WAVE RECTANGULAR SERPENTINE USING 3D FLOW SIMULATION ON PROTON EXCHANGE MEMBRANE FUEL CELL Prasetya, Teguh Imam Khaerudini, Deni Shidqi Cross-section PEMFC Flow field Serpentine The availability of petroleum which continues to decrease and the level of public consumption which is always increasing are serious problems today. Renewable energy needs to be researched on an ongoing basis to anticipate the availability problems above. Proton Exchange Membrane Fuel Cell (PEMFC) is an environmentally friendly source of electrical energy because it only requires hydrogen and oxygen as raw materials and water as a result of the reaction. This study will discuss the PEMFC flow field plate because this component dominates the weight and cost of manufacture. Research on flow field plate PEMFC with wave rectangular cross-section is necessary to develop the PEMFC concept with better performance results. This study aims to determine the effect of the wavy cross-section shape on the distribution of channel average speed, channel outlet speed, inlet pressure, channel average pressure, and channel outlet pressure. This study uses a computational fluid dynamic (CFD) method using SolidWorks flow simulation software. This study provides an overview of the serpentine type of flow field plate with a wave rectangular and rectangular cross-section. The wave rectangular cross-section has a higher average velocity, outlet velocity, inlet pressure, and pressure than the rectangular cross-section. This is what will make PEMFC performance higher. The wave rectangular cross-section has nearly the same number of outlet pressures as the rectangular cross-section. Possible development of this research is the creation of simulation software to calculate other parameters that affect PEMFC performance. Universitas Mercu Buana 2021-09-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11623 10.22441/ijimeam.v3i2.11623 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 2 (2021); 44-49 2477-5428 2477-541X 10.22441/ijimeam.v3i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11623/pdf Copyright (c) 2021 Teguh Imam Prasetya, Deni Shidqi Khaerudini

oai:ojs.pkp.sfu.ca:article/11667 2023-10-16T05:24:48Z ijimeam:ART driver

EFFECT OF WELDING HEAT INPUT ON THE CORROSION RATE OF CARBON STEEL MMA WELDING Sitorus, Melvin Bismark H welding current corrosion rate MMA welding low carbon steel. AbstractSteel is one of materials which often used on steel construction, bridge construction, and high rise building construction. Construction using welding joint is expected able to withstand construction loads for a long time. After a while  weldment will be exposed to corrosion that will be construction failure in turn. One of the most important parameter in welding is heat input, however it hasn’t obtain correlation between heat input and corrosion rate on MMA (Manual Metal Arch) weldment  on mild steel. This paper aims to obtain correlation between heat input and corrosion rate of low carbon steel  with MMA welding. The result was show that  corrosion rate tend to decrease with adding of duration, where higher corrosion rate at heat input 0,8108 kJ/mm was 68,68 gm/m2 hr at duration  5 hour. Universitas Mercu Buana 2021-06-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11667 10.22441/ijimeam.v3i1.11667 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 1 (2021); 16-31 2477-5428 2477-541X 10.22441/ijimeam.v3i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11667/pdf Copyright (c) 2021 Melvin Bismark H Sitorus

oai:ojs.pkp.sfu.ca:article/11723 2023-10-16T05:24:48Z ijimeam:ART driver

A BRIEF REVIEW ON CRYOGUN MACHINE FOR PRE-CERVICAL CANCER HEALING Bagaskara, Aji Sundari, Rita Anggraini, Rini Cervix cancer Cryogun machine Cryotherapy Cervical cancer is generally found in women of all ages due to  virus infection on epithelial cells of female cervix. It is known that a certain type of Human Papilloma Virus (HPV) is suspected to cause cervix cancer in women from various ethnics.   Several therapies have been used to cure cancer diseases like cone biopsy, laser treatment, electrosurgical excision, thermocoagulation, ablation therapy, and cryotherapy. This paper has highlighted on the role of cryogun machine applied in cryotherapy for pre-cervical cancer treatment in relation to freezing technique using liquid nitrogen to kill cancer cells on infectious area.    Universitas Mercu Buana 2021-06-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11723 10.22441/ijimeam.v3i1.11723 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 1 (2021); 32-43 2477-5428 2477-541X 10.22441/ijimeam.v3i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11723/pdf_1 Copyright (c) 2021 Aji Bagaskara, Rita Sundari, Rini Anggraini

oai:ojs.pkp.sfu.ca:article/11776 2023-10-16T05:23:22Z ijimeam:ART driver

CFD SIMULATION OF PRESSURIZATION SYSTEM IN FIRE STAIRS WTC 6 BUILDING Arif, Salahudin Sundari, Rita Anggraini, Rini CFD simulation fire stairs pressurization system safety evacuation. Pressurization system in fire stairs is required for high-rise building for safety evacuation in fire attack. This paper has highlighted on the problem of WTC 6 high-rise building with 18 floors related to safety evacuation in fire attack. In real situation, the minimum air pressure (12.5 Pa) at closed condition and minimum air velocity (1 m/s) at open door chamber in fire stairs as stated in the SNI 03-6571-2001 requirements are not fulfilled by the WTC 6 high-rise building. Therefore, a CFD (Computational Fluid Dynamics) simulation has been used to overcome the problems. The CFD results show that volumetric air flow rate of 7.24 m3/s injected to fire stairs in multiple injection system yielded pressure difference of 39.5–44.7 Pa and air velocity of 1.1–1.2 m/s. The CFD simulation implemented in real situation yields air pressure difference of 38.2 Pa in closed condition and air velocity in open door chamber of 1.16 m/s assumed to solve the problem. Universitas Mercu Buana 2021-09-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11776 10.22441/ijimeam.v3i2.11776 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 2 (2021); 50-57 2477-5428 2477-541X 10.22441/ijimeam.v3i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11776/pdf Copyright (c) 2021 Salahudin Arif, Rita Sundari, Rini Anggraini

oai:ojs.pkp.sfu.ca:article/11829 2023-10-16T05:23:22Z ijimeam:ART driver

LEAKAGE DETECTION ON THE GALVANIZED IRON PIPELINE USING EMPIRICAL MODE DECOMPOSITION AND HILBERT-HUANG TRANSFORM Ghazali, M F Priyandoko, Gigih Pipeline Galvanized Iron Leakage Empirical Mode Decomposition Hilbert-Huang Transform Pipeline networks are one of the most important transportation for gas, oil and water. Leakage in pipelines results in extensive financial loss. To avoid this situation, an algorithm based on the Empirical Mode Decomposition method (EMD) and Hilbert-Huang Transform (HHT) is presented in the research. The objectives of this research to detect pipelines leakage by using EMD method and to locate the location of the leak by using HHT method. The research focuses on the Galvanized Iron (GI) pipe and which the acoustic signal measured by the microphone which act as a sensor is collected by using DASYLab software at frequency of 100 Hz and 500 Hz. It is shown that GI pipe and frequency of 500 Hz produce more accurate results based on the analysis process. Universitas Mercu Buana 2021-09-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11829 10.22441/ijimeam.v3i2.11829 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 2 (2021); 58-64 2477-5428 2477-541X 10.22441/ijimeam.v3i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11829/pdf Copyright (c) 2021 M F Ghazali, Gigih Priyandoko

oai:ojs.pkp.sfu.ca:article/11857 2023-10-16T05:21:26Z ijimeam:ART driver

ENERGY AND COSTS SAVING AIR CONDITIONING SYSTEM OF SHOPPING MALL BUILDINGS: A CASE STUDY IN JAKARTA Marjianto, Agus Haftirman, Haftirman Cooling load Chiller Cost Energy Shopping Mall The air conditioning system for the Mall A building in Jakarta uses a central air conditioning system with a constant flow chiller with TES (Thermal Energy Storage). This system will be verified by measuring data regarding cooling load of the Mall A. The peak cooling load measurement results is 12,299 kW with a total cooling load of 45,733,180 kWh for 1 year. The result of the measurement data will be compared to cooling load calculation by Trace 700 software. Based on Trace 700 software, the peak cooling load is 12,594 kW with a total cooling load of 44,617,405 kWh. Furthermore, using the actual measurement data of the air conditioning system in Mall A, it will be compared with a central air conditioning system with a magnetic bearing chiller which will be equipped with VSD (Variable Speed Drive) to find out how well its energy performance and costs are for a mall building similar to Mall A, as a potential for energy and cost savings. The results of energy calculations and cost analysis, the central air conditioning system with the magnetic bearing chiller is 99 kWh/(m2.year) and the life cycle costs for 20 years, 30 years, and 50 years are 339,828,248,242 IDR, 415,994,136,400 IDR, 521,915,598,761 IDR. While the results of energy calculations and cost analysis, the TES combination constant flow chiller central air conditioning system is 141 kWh/(m2.year) and the life cycle costs for 20 years, 30 years, and 50 years are 435,150,140,059 IDR, 541,700,386,487 IDR, 690,535,151,478 IDR. Based on the foregoing, the central air conditioning system with variable flow magnetic bearing chiller is a better system than the central air conditioning system with TES combination constant flow chiller for shopping mall buildings similar to Mall A. Universitas Mercu Buana 2022-02-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11857 10.22441/ijimeam.v3i3.11857 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 3 (2021); 77-88 2477-5428 2477-541X 10.22441/ijimeam.v3i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11857/pdf Copyright (c) 2022 Agus Marjianto, Haftirman Haftirman

oai:ojs.pkp.sfu.ca:article/11876 2023-10-16T05:23:22Z ijimeam:ART driver

STUDY ON PARAMETERS IN COUNTER CURRENT DOUBLE PIPE HEAT EXCHANGER APPLYING CIRCULAR TURBULATOR Sudiono, Sudiono Sundari, Rita Anggraini, Rini circular turbulator friction coefficient heat exchanger Nusselt number thermal performance water debit Many industries dealing with manufacturing and HVAC (heating, ventilation, and air cooling) are rely heavily on thermodynamics principles with respect to heat and mass transfer. The objective of this study is to do optimization to yield optimum heat transfer rate and minimized pressure drop with regard to number of circular turbulator (CT) and water debit on Nusselt number (Nu) in counter current double pipe heat exchanger. This work has applied the classical rule of thermal science dealing with Nusselt number in relation to convection and conduction of heat transfer rate due to temperature effect. The result shows the highest Nu found to be 835.3 at 5 CT and water debit of 9 L/min. The addition of CT number gives effect on fluid current due to vortex generation. This study also investigates the effect of CT number on friction coefficient that the friction coefficient of a heat exchanger in the absence of CT is lower than that in the presence of CT. For any CT number, the friction coefficient is reduced with increasing water debit. The study has also found that the thermal performance ratio has achieved higher values for heat exchanger in the absence of CT. Universitas Mercu Buana 2021-09-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/vnd.openxmlformats-officedocument.wordprocessingml.document https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11876 10.22441/ijimeam.v3i2.11876 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 2 (2021); 65-70 2477-5428 2477-541X 10.22441/ijimeam.v3i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11876/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11876/11084 Copyright (c) 2021 Sudiono Sudiono, Rita Sundari, Rini Anggraini

oai:ojs.pkp.sfu.ca:article/11930 2023-10-16T05:24:48Z ijimeam:ED driver

Message from Chief Editor Wibowo, Ignatius Agung Universitas Mercu Buana 2021-06-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11930 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 1 (2021) 2477-5428 2477-541X 10.22441/ijimeam.v3i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/11930/pdf Copyright (c) 2021 Ignatius Agung Wibowo

oai:ojs.pkp.sfu.ca:article/12050 2023-10-16T05:20:11Z ijimeam:ART driver

CFD SIMULATION FOR AIRSPEED AND TURBULENCE VALIDATION IN MAIN DUCTING OF OFFICE BUILDING Pradana, Sabilly Handi Khaerudini, Deni Shidqi ASHRAE Cooling load Ducting Computational Fluid Dynamics This paper focuses on the calculation of sizing ducting based on cooling load requirements the main ducting of office building following regulation airspeed requirements using American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) and Computational Fluid Dynamics (CFD) simulations. The purpose of this research is to validate the airspeed and turbulence that occurs in the main ducting between manual calculations and CFD simulations. From the calculation, the cooling load requirement is 58.22 kW, for the cooling process an air flowrate of 7117 L/s is needed which is designed to pass through the main ducting in rectangular shape. The main ducting size uses 1200 mm x 500 mm at a speed of 12.7 m/s according to ASHRAE. Autodesk Inventor software is used for ducting modeling and Autodesk CFD is used for airflow simulation. CFD simulations are performed by applying boundary conditions and input parameters. The results showed that the velocity of the ducting design was suitable at 12.7 m/s with laminar flow. The ducting geometry must be designed aerodynamically to reduce the pressure drop which can cause the speed to increase so that it is outside the required limits. Thus, the CFD simulation results have verified the validity of manual calculations. Universitas Mercu Buana 2022-08-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/12050 10.22441/ijimeam.v4i1.12050 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 1 (2022); 1-6 2477-5428 2477-541X 10.22441/ijimeam.v4i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/12050/pdf Copyright (c) 2022 Sabilly Handi Pradana, Deni Shidqi Khaerudini

oai:ojs.pkp.sfu.ca:article/12459 2023-10-16T05:23:22Z ijimeam:ART driver

EFFECT OF DISCHARGE VARIATION ON THE PERFORMANCE OF SINGLE BLADE ARCHIMEDES SCREW TURBINE: PREDICTION WITH COMPUTATIONAL FLUID DYNAMIC Cahyono, Gunawan Rudi Amrullah, Apip Ansyah, Pathur Razi Mikael, N. Alexius Reynaldi, P.S.M. Rusdi, Rusdi Discharge Archimedes Screw Turbine Performance CFD Constructing a small-scale hydroelectric power station that can run efficiently at a head lower than 10 m is one possible method for reducing the impact of the electricity crisis in remote areas of Indonesia. The Archimedes Screw turbine is one type of turbine that is ideal for discharges below 10 m. In this study, the simulation results show that the value of Turbulences Kinetic Energy is directly proportional to the increase in flow rate but inversely proportional to the level of immersion. This type of turbine is unless well in Indonesia due to a lack of information regarding the application of low head power plants. The turbine model that is suitable for the low head is investigated in this study. Before being tested, the turbine is first designed theoretically and then numerically evaluated. With discharges of 1 l/s, 2 l/s, and 3 l/s and turbine immersion levels of 30%, 50%, and 70%, ANSYS CFD (Computational Fluid Dynamic) software was used to investigate flow rate and level of immersion in the turbine. According to the investigation findings, the discharge has a considerable impact on the turbine's movement; the higher the flow rate, the higher the power to the turbine, which produces a torque on the turbine. The simulation findings indicate that the value of Turbulence Kinetic Energy is proportional to the increase in flow rate but inversely proportional to the level of immersion. Universitas Mercu Buana 2021-09-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/12459 10.22441/ijimeam.v3i2.12459 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 2 (2021); 71-76 2477-5428 2477-541X 10.22441/ijimeam.v3i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/12459/pdf_1 Copyright (c) 2021 Gunawan Rudi Cahyono, Apip Amrullah, Pathur Razi Ansyah, N. Alexius Mikael, P.S.M. Reynaldi, Rusdi Rusdi

oai:ojs.pkp.sfu.ca:article/12963 2023-10-16T05:21:26Z ijimeam:ART driver

FAILURE ANALYSIS OF SCREW COMPRESSOR AND ITS MODIFICATIONS Safaat, Aat Noviyanto, Alfian Screw Compressor fishbone diagram vibration water content Screw compressor is one of critical equipment at many industries. Therefore, its reliability and performance shall be maintained. One problem that often arises with screw compressors is the lubrication system. This study investigates the cause of the screw compressor failure and its modification to prevent failure in the future. The failure analysis of the screw compressor was successfully conducted using the fishbone analysis diagram and visual examination. The presence of water in the oil was found due to a change of oil color. The water content analysis showed that 6% of water was found in the oil in the third month. Indeed, the presence of water has a detrimental effect on the screw compressor part, showing that corrosion has occurred in the inner part of the screw ompressor element. We found the water source comes from the air due to high humidity. Therefore, modification in the air supply is needed to prevent water contamination in the oil. The air supply modification is done using dry air at the screw compressor outlet, flowing into the breather system. The modification results showed that the oil's water content decreased significantly from 6% to 0.0035%. In addition, the vibration that occurs decreases from 80 dB to 58 dB. This shows the effectiveness of the modification process to extend the life of the tool and maintain the plant's operational continuity. Universitas Mercu Buana 2022-02-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/12963 10.22441/ijimeam.v3i3.12963 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 3 (2021); 89-93 2477-5428 2477-541X 10.22441/ijimeam.v3i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/12963/pdf Copyright (c) 2022 Aat Safaat, Alfian Noviyanto

oai:ojs.pkp.sfu.ca:article/13272 2023-10-16T05:23:22Z ijimeam:ED driver

Message from Chief Editor Wibowo, Ignatius Agung Universitas Mercu Buana 2021-09-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/13272 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 2 (2021) 2477-5428 2477-541X 10.22441/ijimeam.v3i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/13272/pdf Copyright (c) 2021 Ignatius Agung Wibowo

oai:ojs.pkp.sfu.ca:article/13759 2023-10-16T05:21:26Z ijimeam:ART driver

WATERMELON PEEL EXTRACT AS GREEN CORROSION INHIBITOR FOR ST-37 CARBON STEEL IN SEAWATER Priharti, Sri Teguh Nizar, Umar Kalmar Sundari, Rita Etika, Sri Benti Oktavia, Budhi Putra, Ananda Anggraini, Rini carbon steel corrosion rate inhibition efficiency watermelon peel extract Corrosion engineering has taken great interest in many industries that required high cost management to overcome the serious problems. This work has investigated the role of watermelon peel extract as green inhibitor to protect carbon steel in seawater. This investigation has studied the corrosion rate and inhibition efficiency applying weight loss method.  The laboratory result shows the optimum inhibition efficiency found to be 71.64% at 5% inhibitor concentration in 100 ml seawater at room temperature. The effects of temperature and immersion time on inhibition efficiency have also been examined.  This study has used Arrhenius equation based on activation energy to determine type of adsorption encountered with corrosion process. The result shows a chemical adsorption justified by its high adsorption heat and strengthened by FTIR and UV-Vis examinations. The phytochemical examination of watermelon peel extract gives positive response to flavonoid, alkaloid, and saponin. The finding is useful for many industries encountered with carbon steel corrosion in corrosive medium using green inhibitor.    Universitas Mercu Buana 2022-02-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/13759 10.22441/ijimeam.v3i3.13759 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 3 (2021); 94-104 2477-5428 2477-541X 10.22441/ijimeam.v3i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/13759/pdf Copyright (c) 2022 Sri Teguh Priharti, Umar Kalmar Nizar, Rita Sundari, Sri Benti Etika, Budhi Oktavia, Ananda Putra, Rini Anggraini

oai:ojs.pkp.sfu.ca:article/13986 2023-10-16T05:21:26Z ijimeam:ART driver

THE MEASUREMENT OF POTENTIAL RISK OF FIRE AND EXPLOSION AT GAS STASION IN TO ANTICIPATE NON-MILITARY THREATS Aferdiansyah, Rizky Affuwani, Novita Elita Hafizah, Mas Ayu Triharjanto, Robertus Heru Nugroho, Widianto dow’s fire and explosion index gas station storage tank pertamax non-military threat Gas stations (SPBU in Indonesia) have the potency for fire and explosion hazards due to the storage and distribution of flammable liquids, one of which is Pertamax. This can be a non-military threat in the dimension of public safety because if it occurs, the resulting loss could be very large in terms of material or life. This study aims to determine the risk of fire and explosion at Indonesian gas station. This study uses Dow's Fire and Explosion Index in asimulated case method. The potential for fire and explosion or the value of the Fire Explosion Index (F&EI) in the simulated case is 111,24. The actual exposure radius is 29.62 m and the damage factor to the Pertamax storage tank is 63%. The results of the study have a risk level that is classified as Intermediate, so it is necessary to control risks such as increasing active protection and is expected to be an input in efforts to safeguard against non-military threats so as to reduce the impact of risks and losses that occur in the Pertamax storage tank. Universitas Mercu Buana 2022-02-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/13986 10.22441/ijimeam.v3i3.13986 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 3 (2021); 105-111 2477-5428 2477-541X 10.22441/ijimeam.v3i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/13986/pdf Copyright (c) 2022 Rizky Aferdiansyah, Novita Affuwani, Mas Ayu Elita Hafizah, Robertus Heru Triharjanto, Widianto Nugroho

oai:ojs.pkp.sfu.ca:article/14038 2023-10-16T05:21:26Z ijimeam:ART driver

THE EFFECT OF GRAPHENE OXIDE ADDITION ON MAGNETIC PROPERTIES OF IRON OXIDE (FE2O3) NANOPOWDER WITH SINTERING AND NON-SINTERING PROCESS Yazirin, Cepi Muhammad, A. Dika, J. W. Tsamroh, D. I. Mudawamah, Mudawamah Graphene Oxide Fe2O3 Magnetic Properties Sintering and Non-sintering Graphene Oxide is a material that has a thickness of one atom composed of carbon atoms to form a hexagonal lattice and a material that has unique properties, namely mechanical, optical, thermal, and electrical properties. Fe2O3 is a material that has magnetic properties and can be used for various applications such as enzyme separation, drug transport, microwave absorption, photocatalysts, biological applications, biomedicine, metal separation, and magnetic resonance imaging (MRI). In this study, the addition of graphene oxide was carried out using the coprecipitation method on Fe2O3 nanomaterials that had been treated with sintering and non-sintering. The coprecipitation method is the synthesis of inorganic compounds which is based on the deposition of more than one substance together when it passes the saturation point. The purpose of this study was to determine whether the addition of graphene oxide to the Fe2O3 material can increase the magnetic properties of the Fe2O3 material or vice versa. The result was that the sintering treatment on Fe2O3 GO did not have a transforming effect on its magnetic properties, but instead had a changing effect on its magnetic value. However, the magnetic coercivity value of Fe2O3 + GO 700 ºC increased to 0.038 Tesla. Thus, it can be concluded that at a temperature of 700 °C graphene oxide acts as a barrier from external magnetic fields in the opposite direction. Universitas Mercu Buana 2022-02-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/14038 10.22441/ijimeam.v3i3.14038 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 3 (2021); 112-117 2477-5428 2477-541X 10.22441/ijimeam.v3i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/14038/pdf Copyright (c) 2022 Cepi Yazirin, A. Muhammad, J. W. Dika, D. I. Tsamroh, Mudawamah Mudawamah

oai:ojs.pkp.sfu.ca:article/14491 2023-10-16T05:20:11Z ijimeam:ART driver

EVALUATION ENERGY SAVINGS AT MALUKU PROVINCE OFFICE BUILDING IN JAKARTA Syauta, Tommy Martin Khaerudini, Deni Shidqi Conservation Energy Audit Energy Lighting System Air Conditioning System The electricity is very important to support activities in office building .The equipment like AC ( Air conditioning ) needs more electricity to be operated. The is almost 60%  is use to support this system (AC). This percentage describe that air condition system is an equipment that needs more electricity in the office and its become inefficiency in using electricity. To take overcome for this problem we need to efficiency in using energy. One of the method that now used to efficient that energy is called “ energy conversation” This method is using to saving the energy There is one thing that must be done in this activity which is “ energy audit “. Audit energy is one of method calculate IKE (  Intension Consumption  Energy) at on the building.The first preliminary audit shown that more energy, which 60% is use to operated the air conditioning (AC) system and 30% to operate lighting system. IKE for the lighting system is still below from maximum standard  which is 15 watt/m²The opportunity of saving energy on audit energy in AC system is done by cleaning up consist of : cleaning up filter, propeller corner fin of the evaporator, and the grill of in door unit. Universitas Mercu Buana 2022-08-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/14491 10.22441/ijimeam.v4i1.14491 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 1 (2022); 7-11 2477-5428 2477-541X 10.22441/ijimeam.v4i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/14491/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/14491/11243 Copyright (c) 2022 Tommy Martin Syauta, Deni Shidqi Khaerudini

oai:ojs.pkp.sfu.ca:article/14721 2023-10-16T05:21:26Z ijimeam:ED driver

Message from Chief Editor Wibowo, Ignatius Agung Universitas Mercu Buana 2022-02-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/14721 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 3 No. 3 (2021) 2477-5428 2477-541X 10.22441/ijimeam.v3i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/14721/pdf Copyright (c) 2022 Ignatius Agung Wibowo

oai:ojs.pkp.sfu.ca:article/15132 2023-10-16T05:20:11Z ijimeam:ART driver

PROPERTIES AND MORPHOLOGICAL OF MORTAR CONTAINING USED ENGINE OIL Harmaji, Andrie Ramadhan, Andikah Willy Used Engine Oil Mortar Retarder Ettringite Engine oil has an important role in the design and operation of all automotive engines. Used engine oil is a waste product produced in high quantity in the workshop garage which commonly found in most cities in Indonesia. The utilization of used engine oil has shown potential as retarder by reduce the setting time of mortar. In this study mortar was made by mixing cement,light aggregate, water, and engine oil both new and used as admixture ranged 0-1%. Mortar sample treatment is carried out at room temperature. The samples were tested for setting time and compressive strength after 3, 7 and 28 days curing. Scanning Electron Microscope characterization was carried out to to find out the morphological structure of resulting mortar. Results shown that the mortar with the addition of 0.75% used engine oil has the highest compressive test result of 9.31 MPa when the mortar reached 28 days compared to mortar without engine oil addition has a compressive test result of 7.546 MPa. SEM Images shown there are more ettringite presents in mortar with used engine oil addition. Universitas Mercu Buana 2022-08-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/15132 10.22441/ijimeam.v4i1.15132 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 1 (2022); 12-16 2477-5428 2477-541X 10.22441/ijimeam.v4i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/15132/pdf Copyright (c) 2022 Andrie Harmaji, Andikah Willy Ramadhan

oai:ojs.pkp.sfu.ca:article/15374 2023-10-16T05:20:11Z ijimeam:ART driver

DESIGN OF FRAME FOR THE PUMP PERFORMANCE TEST EQUIPMENT USING VDI 2221 METHOD Fitri, Muhamad Rizqiansyah, Frelly PPTE Frame VDDI 2221 Pumps in modern human life have become a major need, and their use is very wide, therefore pump learning is indispensable for mechanical engineering students. For pump performance learning media, Pump Performance Test Equipment (PPTE) is needed. The test equipment requires a strong frame and meets the requirements to be able to withstand the load, not only the equipment load but also the water weight used as the working fluid on the performance test equipment which is very large. This study aims to design a frame that can withstand the entire load of the PPTE. The design is done by calculating the load experienced by the frame when the test equipment is operated. The design of this pump performance test framework uses the VDI 2221 method, which includes several stages: task clarification, design concepts, concept embodiment, and design details. The results obtained from the use of the VDI 2221 method are variation 1, with a frame of 1000mm length, 1200mm width, and 1140mm height. The frame specifications using 4x4 hollow steel size with a thickness of 2mm and 4x6 size with a thickness of 3mm, and using a wheel type with a lock that can withstand the load. maximum up to 600kg. Universitas Mercu Buana 2022-08-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/vnd.openxmlformats-officedocument.wordprocessingml.document https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/15374 10.22441/ijimeam.v4i1.15374 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 1 (2022); 17-22 2477-5428 2477-541X 10.22441/ijimeam.v4i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/15374/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/15374/11296 Copyright (c) 2022 Muhamad Fitri, Frelly Rizqiansyah

oai:ojs.pkp.sfu.ca:article/15763 2023-10-16T05:20:11Z ijimeam:ART driver

NiO ELECTRO-DEPOSITION TECHNIQUE OF γ-Al2O3 WASHCOAT ON FeCrAl SUBSTRATE BY USING SULPHAMATE TYPE SOLUTION Feriyanto, Dafit Leman, A. M. Sudarma, Andi Firdaus Romahadi, Dedik Pranoto, Hadi Catalytic converter electro-deposition coating FeCrAl Electro-deposition process to develop surface layer on the substrate material in Catalytic converter (CATCO) become interesting area due to that process was purposed to improve the physical properties of substrate material. Currently, precious metals such as Platinum (Pt), Palladium (Pd), and Rodium (Rd) were used due to excellent oxidation resistant but it limited and easily oxidized. Therefore, Nickel Oxide (NiO) catalyst used as electro-deposition material. NiO electro-deposition technique that called by EL was conducted by using NiO as cathode and FeCrAl as substrate and -Al2O3 as washcoat material. This technique was performed by  variation times of 15, 30, 45, 60 and 75 minutes, current density of 8 A/dm2. The results shows that Coating layer of NiO and  -Al2O3 has been developed on surface of FeCrAl substrate. The coating layer was increase the surface roughness which showed by surface morphology data that coated FeCrAl substrate has uneven surface and some particles has been embedded on that surface. The composition of raw material was consists of Fe for 74.13wt%,  Cr of 20.25 wt% and Al of 5.62 wt%. Meanwhile, for composition of EL samples was 52.56- 63.54wt% for Fe element, Al for 3.56-11.89 wt%, Cr for 14.97-18.56 wt%, O for 2.47-11.78 wt%, C for 8.33-11.85 wt%, Na for 0.11-0.48 wt%  and Ni for 0.17- 1.58 wt%.  Higher elements of the EL samples potential to improve the thermal stability at high temperature due to CATCO operate at high temperature of 600-8500C and in extreme condition. Universitas Mercu Buana 2022-08-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/15763 10.22441/ijimeam.v4i1.15763 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 1 (2022); 23-29 2477-5428 2477-541X 10.22441/ijimeam.v4i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/15763/pdf Copyright (c) 2022 Dafit Feriyanto, A. M. Leman, Andi Firdaus Sudarma, Dedik Romahadi, H. Pranoto

oai:ojs.pkp.sfu.ca:article/16610 2023-10-16T05:19:08Z ijimeam:ART driver

THE EFFECT OF ADDITION GREEN INHIBITOR D-GALACTOSE ON CORROSION RATE OF ALUMINUM ALLOY 5052 IN SULFURIC ACID (H2SO4) MEDIA Muhajirin, Muhajirin Arwati, I. G. A. Hartati, S. Hakim, H. Noviyanto, Alfian Arramel, Arramel Zakly, T. Aluminum Alloy 5052 Electrophoretic Deposition Electrochemical D-galactose Fuel Cell Aluminum alloy 5052 (Al5052) is one of the metals used as a bipolar plate in a Proton Exchange Membrane Fuel Cell (PEMFC) due to has its light mass and being easy to form, and, has high conductivity and resistivity properties. This material is prone to corrosion and current knowledge to protect its surface is currently lacking. The product of PEMFC produces electrical energy, hot steam (313 – 353 K), and water. These conditions have an impact on the degraded bipolar plate caused by the acidic nafion membrane. This increases the risk of corrosion on the cathode side of the bipolar plate. Coating with a green inhibitor using the electrophoretic deposition technique (EPD) is one way to deal with the corrosion that occurs. The analysis method used electrochemical with potentiodynamic polarization techniques, electrochemistry impedance spectroscopy (EIS), Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). In this study, green inhibitor D-galactose was used with a concentration of 0.5 – 1.5 g and an, EPD time of 15 – 45 minutes in 0.5 M sulfuric acid (H2SO4) media pH 1-4. Potentiodynamic polarization analysis at the lowest corrosion current value (Icorr) at demonstrates (the inhibitor concentration of 1.5 g with an and EPD time of 45 minutes) resulted corrosion rate of Al5052 before EPD was 0.0075 mmPY while the corrosion rate of Al5052 after EPD was 0.0041 mmPY with (inhibitors efficiency 45.2%). The FTIR spectrum, broad peak appeared in the range of 3000-3600 cm-1, which refers to the formation of hydrogen bonding of hydroxyl group. Methyl group of D-galactose also appear on 2918 cm-1 and 2850 cm-1 which attributed to =CH2 asymmetric stretch and −CH3 symmetric stretch, respectively. Carbonyl group on 1500 – 1700 cm-1 represent C=O bond of amide, and aldehyde. Peak 1097 – 1035 cm-1 which attributed to C-O were connected to the secondary and primary alcohols. The resistance value for Al5052 before and after EPD are 1.2 kΩ/cm2 after and 2.2 kΩ/cm2, respectively. Here we find that the resistance increases with the increasing concentration and time of EPD. The results cross section Al5052 within average 29.8 μm, and morphology with SEM Al5052 before EPD showed pitting corrosion. On the other hand, the image of Al5052 inhibitor coating 1.5 gr with EPD of 45 minutes shows a smooth surface and visible black lumps, suggesting Al5052 is successfully reduced a corrosion rate by the D-galactose. Our simple and robust method inferred a protection route towards a viable and physically stable green inhibitors. Universitas Mercu Buana 2023-02-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/16610 10.22441/ijimeam.v4i2.16610 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 2 (2022); 30-37 2477-5428 2477-541X 10.22441/ijimeam.v4i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/16610/pdf_1 Copyright (c) 2022 Muhajirin Muhajirin, I. G. A. Arwati, S. Hartati, H. Hakim, Alfian Noviyanto, Arramel Arramel, T. Zakly

oai:ojs.pkp.sfu.ca:article/16641 2023-10-16T05:20:11Z ijimeam:ED driver

Message from Chief Editor Wibowo, Ignatius Agung Universitas Mercu Buana 2022-08-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/16641 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 1 (2022) 2477-5428 2477-541X 10.22441/ijimeam.v4i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/16641/pdf Copyright (c) 2022 Ignatius Agung Wibowo

oai:ojs.pkp.sfu.ca:article/16832 2025-04-14T09:46:14Z ijimeam:ART driver

MECHANICAL STUDY OF 9CR-SS316L-1MO MATERIAL FOR CLADDING NUCLEAR FUEL POWER REACTORS Purnama, Mayda Sudjadi, Usman Mechanical Properties Physical Properties 9Cr-SS316L-1Mo Nuclear Fuel Cladding Power Reactor In this research, SS316 steel and modified 9Cr-1Mo steel were developed. The aim is to analyze the results of the hardness test, impact test, bending test, and microstructure. The Mo element was chosen because it has a relatively small microscopic cross-section of the neutron, which is 2.6 barn. The element Mo is in the same periodic period as Zr and Nb, so that the mechanical properties and so on are not much different. In this study, samples of SS316L steel and modified 9Cr-1Mo steel were made. Samples material of 90% SS316L + 9% Cr + 1% Mo were melted by electric arc melting. Tempering was carried out after the smelting process was completed. The sample consisted of 6 pieces, 1 sample did not receive tempering treatment while the other 5 samples received tempering treatment at 100°C, 200°C, 300°C, 400°C, and 500°C. The samples were tested using various methods including Rockwell hardness test, impact test, microstructure test, bending test, and examination of other properties of the material samples. Hardness, impact, and bending test results as well as the samples microstructure were analyzed. The highest decrease in hardness value was in specimen 1 (non-treatment) which was 21.33 HRc and the lowest decrease was in specimen 6 (heat treatment at 500°C) which was 16.66 HRc. For the results of the impact energy test (EI) with an average value, there was not too much difference, namely the highest value was 1.0034 joules/mm2 in specimen 2 (heat treatment at 100°C) and the lowest value was 1.0020 joules/mm2 in specimen 6 (heat treatment at 500°C). The results of the microstructure test showed that the ferrite and pearlite content is still present in the test object. The highest bending test result in sample 6 with 500°C tempering had a maximum load-bearing strength of 1050 Newton so that the bending strength was 7875 kgf/cm2 and the lowest result was in sample 1 without tempering having a maximum load-bearing strength of 670 Newton so that the bending strength was 5025 kgf/ cm2 Universitas Mercu Buana 2023-02-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/16832 10.22441/ijimeam.v4i2.16832 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 2 (2022); 38-45 2477-5428 2477-541X 10.22441/ijimeam.v4i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/16832/pdf Copyright (c) 2022 Mayda Purnama, Usman Sudjadi

oai:ojs.pkp.sfu.ca:article/17036 2023-10-16T05:19:08Z ijimeam:ART driver

MORPHOLOGICAL AND PROPERTIES OF PORTLAND-COMPOSITE CEMENTS WITH CLASS C FLY ASH Harmaji, Andrie Fadillah, A. Portland-Composite Cements Class C Fly Ash Retardation Compressive Strength Tobermorite Portland-composite cements (PCC) were prepared with partial substitution of 5 to 25% of class C fly ash, obtained from East Java steam power plant. Properties of the composite cements was evaluated, through the setting time (initial and final) and compressive strength (3, 7, and 28 days) compared with control PCC. Setting time is retarded in Portland-composite cements with higher fly ash content. The retardation is highest in PCC with substitution of 25% fly ash. Lower compressive strength is obtained after 3 and 7 days of curing for PCC with 5-25% fly ash substitution in comparison with control cement, since pozzolanic reaction still did not show its effect. After 28 days, compressive strength was higher than that for control cement because pozzolanic reaction show its effect, highlighted by compressive strength increase of PCC substituted by 5% and 10% fly ash, 16.48 MPa and 16.52 MPa, respectively. This attributed to the differences in the pozzolanic activity of the applied fly ash. The compressive strength increase was explained by Scanning Electron Microscope (SEM), which shows that PCC with substitution of 10% fly ash had more Tobermorite presented compared to control cement. Universitas Mercu Buana 2023-02-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/17036 10.22441/ijimeam.v4i2.17036 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 2 (2022); 46-50 2477-5428 2477-541X 10.22441/ijimeam.v4i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/17036/pdf Copyright (c) 2022 Andrie Harmaji, A. Fadillah

oai:ojs.pkp.sfu.ca:article/17135 2023-10-16T05:19:08Z ijimeam:ART driver

COMPARATIVE STUDY USING LOW COST ACETIC AND SULFURIC ACIDS ON ROASTING AND PEROXIDE FOR LEACHING PROCESS TO EXTRACT PB FROM GALENA Dahani, Wiwik Sundari, Rita Somali, Subandrio Marwanza, Irfan Ivetta, Ivetta acetic acid galena concentrate lead extraction sulfuric acid AAS Extraction of heavy metals from mineral concentrate applying leaching acids is a major issue due to simple, fast, and economical process. This article aims to present the application of acetic acid and sulfuric acid for lead (Pb) extraction from galena concentrate applying roasting (600oC and 60 min.) and peroxide oxidant (0.5 M) for 60 min. leaching process. Nowadays, lead has been broadly applied for batteries, besides for PVC tubes, chemicals, paint color, and alloys for joint. The peroxide increases the percentage of Pb extraction. This study shows the effect of acid concentrations (1.0 M, 1.5 M, and 2.0 M), temperatures (30, 50, and 70oC), and stirring speed (200, 400, and 600 rpm) on Pb extraction from galena. A particle size of galena ≤ 200 mesh after roasting has been used for leaching process. AAS has been used to determine Pb concentration in solution after leaching process. This study shows that acetic acid is a better leaching agent rather than sulfuric acid due to lead sulfate precipitation. Optimization result shows leaching with acetic acid achieved 35.64 ppm Pb extraction using 2.0 M acetic acid, 50oC, and stirring speed of 200 rpm. This study used low-cost acids as leaching agent for Pb recovery that can be viewed as a preliminary breakthrough in heavy metal recovery. The simple leaching technique looks promising for future application on heavy metal separation from mining mineral. Universitas Mercu Buana 2023-02-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/17135 10.22441/ijimeam.v4i2.17135 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 2 (2022); 51-57 2477-5428 2477-541X 10.22441/ijimeam.v4i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/17135/pdf Copyright (c) 2022 Wiwik Dahani, Rita Sundari, Subandrio Somali, Irfan Marwanza, Ivetta Ivetta

oai:ojs.pkp.sfu.ca:article/18235 2023-10-16T05:19:08Z ijimeam:ART driver

ANALYSIS OF OIL ABSORPTION AND FRICTION COEFFICIENT OF BAMBOO POWDER, COCONUT POWDER, GLASS POWDER, AND COPPER POWDER COMPOSITES FOR CLUTCH PADS Risyuma, Iqbal Fitri, Muhamad Clutch pads composite absorption friction coefficient This study aims to determine the characteristics of the absorption test with SAE 10W-30 and the friction coefficient test with the ASTM D 3702-94 test standard on composite clutch pads made from bamboo powder, coconut powder, glass powder, and copper powder. It is based on the considerations that there are abundance of natural resources of bamboo and coconut with that is still not optimally utilized as well as the discovery of several hazardous clutch lining (asbestos) basic material properties. In each test, each composition variation was tested 3 times and from the data, the average value of the composition variation was taken. Based on this research, the specimen with the highest oil absorption value is specimen combination 3 (BB20KL20CU0KC20) with an absorption value of 17.98% and the specimen with the lowest absorption value is specimen combination 2 (BB20KL20CU5KC15) with an absorption value of 4.88%, and the specimen with the highest percentage change in volume is specimen combination 1 (BB20KL20CU10KC10) with a percentage of 3.30%, and the specimen with the lowest percentage change in volume is specimen combination 2 (BB20KL20CU5KC15) with a percentage of 1.01%. From the results of the combined friction coefficient test, specimen 3 (BB20KL20CU0KC20) has the highest friction coefficient value of 0.54526 and specimen 2 (BB20KL20CU5KC15) has the lowest friction coefficient value of 0.16923. Universitas Mercu Buana 2023-02-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18235 10.22441/ijimeam.v4i2.18235 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 2 (2022); 58-65 2477-5428 2477-541X 10.22441/ijimeam.v4i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18235/pdf Copyright (c) 2022 Iqbal Risyuma, Muhamad Fitri

oai:ojs.pkp.sfu.ca:article/18794 2023-10-16T05:18:06Z ijimeam:ART driver

IMPLEMENTATION OF THE FINITE ELEMENT METHOD IN SOLIDWORKS TO OPTIMIZE THE FRONT CAST WHEEL DESIGN FOR MOTORCYCLES Kurniawan, Rizki Nur Afami Romahadi, Dedik Fitri, Muhamad Karim, Md Radwanul Cast wheel rims Finite Element Analysis Von Mises Stress Safety Factor Cast wheel rims often experience damage that causes damage to the lip of the rim, or the spokes rupture if it supports the excessive load. The safety aspect is very important to be considered in the automotive industry because it involves the lives of passengers. Structural optimization of various vehicle components has shown that component weight strongly influences vehicle performance. Based on these problems, this research aims to design a lightweight cast wheel design model that can withstand a load of 535 N. So, it is necessary to make an analysis using a comparison of design models and material variations and static simulations using Solidworks 2018 software. The results sought are von mises, displacement, strain, a factor of safety, and produce a lightweight design. The simulation results on the three models are still safe in holding a load of 535 N because the value of the factor of safety is not less than 1. The results of the design mass with material variations are lighter than the original wheels. Universitas Mercu Buana 2023-05-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18794 10.22441/ijimeam.v4i3.18794 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 3 (2022); 66-73 2477-5428 2477-541X 10.22441/ijimeam.v4i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18794/pdf Copyright (c) 2022 Rizki Nur Afami Kurniawan, Dedik Romahadi, Muhamad Fitri, Md Radwanul Karim

oai:ojs.pkp.sfu.ca:article/18832 2026-09-05T08:13:07Z ijimeam:ART driver

DEVELOPMENT OF A PORTABLE MOTOR VEHICLE EMISSION TEST SYSTEM BASED ON ARDUINO WITH ANDROID INTERFACE Indah, Nur Pangestu, Dimas Aji Utomo, Satryo Budi Youlia, Rikko Putra Arduino Vehicle Emission Gas MQ2 MQ7 Android This study takes a comprehensive approach by proposing the design of an innovative emission test tool for motorized vehicles. The primary objective of this tool's design is to establish an alternative emission testing apparatus based on Arduino AT-Mega 2560, proficient in capturing vehicle exhaust emissions. The underlying methodology involves an in-depth investigation of various components, including the MQ2 and MQ7 sensors, microcontrollers, and supplementary sensors. This meticulous observational process aims to unravel the fundamental principles that govern the functionality of these components. Subsequently, the study advances to the prototyping phase, manifesting in the creation of an Android-based emission test system. This system capitalizes on the integration of Arduino programming and App Inventor technology. The integrated system is devised to facilitate sensor data acquisition. The empirical results of the tests indicate that the developed tool effectively measures hydrocarbon gas and carbon monoxide gas concentrations, yielding readings of 6.31% and 3.73%, respectively, under engine conditions ranging from 1500 to 3000 rpm with error in regions 1.4% and 5.1% compared to a commercial instrument. However, during the testing phase, certain challenges surfaced. Notably, the presence of water particles within the tool, coupled with the generation of heat due to the accommodated exhaust gases, increased the temperature within the tool's enclosure. Consequently, the sensors' temperature escalated, resulting in erratic sensor behavior and unstable readings. Nonetheless, a significant advantage of the proposed tool lies in its real-time data visualization capability, which is particularly accessible through Android smartphones. This feature enhances the immediacy of test results, facilitating prompt analysis and decision-making. In conclusion, this study lays the groundwork for an innovative emission testing tool that demonstrates promise in addressing the air quality degradation stemming from vehicular emissions. Universitas Mercu Buana 2023-12-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18832 10.22441/ijimeam.v5i2.18832 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 2 (2023); 43-48 2477-5428 2477-541X 10.22441/ijimeam.v5i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18832/pdf Copyright (c) 2023 Nur Indah, Dimas Aji Pangestu, Satryo Budi Utomo, Rikko Putra Youlia https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/18833 2023-10-16T05:29:50Z ijimeam:ART driver

THE EFFORTS ON SUSTAINABILITY OF THE ACHIEVEMENT FKMP ON QS WORLD UNIVERSITY RANKING TOP 300 BY SUBJECT Nasir, N. F. Yusof, Y. FKMP efforts world ranking QS ranking This article review each vital elements and aspects that contribute to sustain recent achievement of Faculty of Mechanical and Manufacturing Engineering (FKMP), Universiti Tun Hussein Onn Malaysia by the QS world university ranking by subject in 2015. Some of recent and important issues are discussed and reviewed. The suggestions for improvements are also raised out for further reference. Universitas Mercu Buana 2015-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18833 10.22441/ijimeam.v1i1.18833 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 1 No. 1 (2015); 1-4 2477-5428 2477-541X 10.22441/ijimeam.v1i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18833/pdf Copyright (c) 2015 N. F. Nasir, Y. Yusof

oai:ojs.pkp.sfu.ca:article/18834 2023-10-16T05:29:50Z ijimeam:ART driver

SIMILARITY AND NONSIMILARITY SOLUTIONS ON FLOW AND HEAT TRANSFER OVER A WEDGE WITH POWER LAW STREAM CONDITION Ismoen, M. Karim, M. F. Mohamad, R. Kandasamy, R. similarity non-similarity buoyancy force power law stream condition The similarity and non-similarity analysis are presented to investigate the effect of buoyancy force on the steady flow and heat transfer of fluid past a heated wedge. The fluid is assumed to be a Newtonian, viscous and incompressible. The wall of the wedge is an impermeable with power law free stream velocity and a wall temperature. Due to the effect of a buoyancy force, a power law of free stream velocity and wall temperature, then the flow field is similar when n = 2m - 1, otherwise is non-similar when n ≠ 2m - 1. The governing boundary layer equations are written into dimensionless forms of ordinary differential equations by means of Falkner-Skan transformation. The resulting ordinary differential equations are solved by Runge-Kutta Gill with shooting method for finding a skin friction and a rate of heat transfer. The effects of buoyancy force and non-uniform wall temperature parameters on the dimensionless velocity and temperature profiles are shown graphically. Comparisons with previously published works are performed and excellent agreement between the results is obtained. The conclusion is drawn that the flow field and temperature profiles are significantly influenced by these parameters. Universitas Mercu Buana 2015-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18834 10.22441/ijimeam.v1i1.18834 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 1 No. 1 (2015); 5-12 2477-5428 2477-541X 10.22441/ijimeam.v1i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18834/pdf Copyright (c) 2015 M. Ismoen, M. F. Karim, R. Mohamad, R. Kandasamy

oai:ojs.pkp.sfu.ca:article/18835 2023-10-16T05:29:50Z ijimeam:ED driver

Message from the Chief Editor Publikasi, Administrator Web Universitas Mercu Buana 2015-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18835 10.22441/ijimeam.v1i1.18835 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 1 No. 1 (2015) 2477-5428 2477-541X 10.22441/ijimeam.v1i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18835/pdf Copyright (c) 2015 Administrator Web Publikasi

oai:ojs.pkp.sfu.ca:article/18882 2023-10-16T05:18:06Z ijimeam:ART driver

DESIGN OF A 10 TONS OVERHEAD CRANE WITH 21 METERS SPAN USING FINITE ELEMENT METHOD Heriawan, Anton Fitri, Muhamad Overhead Crane Finite Element Solidworks Mold Storage Tensile Stress A crane is a lifting equipment widely used to move cargo, construction sites, storage, and unload. The type of crane that is commonly used in industrial environments is the overhead crane. The overhead crane functions as a lifting device. Besides that, it also works as a load transfer tool even though the load being moved is limited to an environment that is not too large (indoor) at PT. A overhead crane is designed to overcome the problem of moving material in the mold storage area due to the area's expansion and the addition of 5-7 tons of mold material. Therefore, proper design is needed so the overhead crane can function properly. The design method uses the VDI 2221 or Finite Element with Solid works software. The results of the structure obtained are double box girder type girders with dimensions p = 21 m, t = 1224 mm, and l = 600 mm. The deflection results are 13.75 mm, and the runway uses steel profile I with dimensions 400 x 200 x 8 x 13 mm, with a deflection value at the runway stem of 5.6 mm. The type of wire rope used is type 6 x 37, with a diameter of 28 mm. The stress that occurs in the steel rope is 4306.1 Kg, less than the maximum allowable tensile stress of 8009.4 Kg. The single hook type with a hook diameter of 120 mm is made of material S45C. The tensile stress on the hook is 0.88 Kg, and the result is smaller than the allowable tensile stress of 12.72 Kg. The pulley diameter is 630 mm, the drum diameter is 604.9 mm, and the drum length is 279 mm. Universitas Mercu Buana 2023-05-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18882 10.22441/ijimeam.v4i3.18882 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 3 (2022); 74-80 2477-5428 2477-541X 10.22441/ijimeam.v4i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18882/pdf Copyright (c) 2022 Anton Heriawan, Muhamad Fitri, Ph.D

oai:ojs.pkp.sfu.ca:article/18883 2023-10-16T05:29:50Z ijimeam:ART driver

COMPUTERIZED VALUE STREAM SYSTEM (CVSS) TO REDUCE WASTE IN LEAN MANUFACTURING OPERATION Hasan, Sulaiman Hj. Ahmad, A. N. A. Feriyanto, D. value stream mapping CVSS lean manufacturing system increase productivity waste reduction mapping (VSM) is one of the methods that can be used by practitioner to support lean. VSM method is also a common method to identify waste and determined causes of the waste through the value stream mapping approach and propose solutions to improve workplace environment. This project is an attempt to computerize the normally manual VSM process. Computerize value stream system (CVSS) is basically a method which is an internet networking system combined with traditional concept of value stream mapping method used at manufacturing company to reduce wastes. This paper summarizes the way to apply an internet, online and network based of an efficient computerize value stream system to improve operation value of the manufacturing company. This paper reviews the design of the package that will replace the manual method of doing VSM. The system is tested in a real shop floor environment and found to be successful. Universitas Mercu Buana 2015-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18883 10.22441/ijimeam.v1i1.18883 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 1 No. 1 (2015); 13-18 2477-5428 2477-541X 10.22441/ijimeam.v1i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18883/pdf Copyright (c) 2015 Sulaiman Hj. Hasan, A. N. A. Ahmad, D. Feriyanto

oai:ojs.pkp.sfu.ca:article/18885 2023-10-16T05:29:50Z ijimeam:ART driver

A NONPARAMETRIC SYSTEM IDENTIFICATION BASED ON TRANSIENT ANALYSIS WITH PLANT PROCESS OF HEAT EXCHANGER AS STUDY CASE Mulyana, Tatang nonparametric identification systems transient analysis process plant heat exchanger temperature constant time constant calculated error In this article, a nonparametric identification system based on transient analysis has been reviewed, by taking the case in some of the data plant process of heat exchanger. Results of the study found that the first-order transfer function without time-delay the proposed model to the data with a temperature constant value is 35.20 ºC and the time constant is 7200 seconds. This model has been fit to meet the existing data proving that the results of the calculation error do not exceed 2% Universitas Mercu Buana 2015-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18885 10.22441/ijimeam.v1i1.18885 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 1 No. 1 (2015); 19-26 2477-5428 2477-541X 10.22441/ijimeam.v1i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18885/pdf Copyright (c) 2015 Tatang Mulyana

oai:ojs.pkp.sfu.ca:article/18886 2023-10-16T05:29:50Z ijimeam:ART driver

OPTIMIZATION OF SOLAR-WIND-DIESEL HYBRID POWER SYSTEM DESIGN USING HOMER Wibowo, Ignatius Agung Sebayang, Darwin hybrid power system wind solar HOMER Indonesia has a lot of potential for renewable energy. Electricity generation from hybrid solar and wind energy will be a prospective solution to fulfill electricity supply for remote and rural communities. Although diesel generator was still part of the hybrid power system, however, with a proper design, the fuel consumption could be reduced significantly. HOMER software was utilized to aid the design process by providing optimum configuration of the hybrid power system components in terms of performance and economy. Universitas Mercu Buana 2015-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18886 10.22441/ijimeam.v1i1.18886 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 1 No. 1 (2015); 27-31 2477-5428 2477-541X 10.22441/ijimeam.v1i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18886/pdf Copyright (c) 2015 Ignatius Agung Wibowo, Darwin Sebayang

oai:ojs.pkp.sfu.ca:article/18887 2023-10-16T05:29:50Z ijimeam:ART driver

PREPARATION AND PHOTOLUMINESCENCE PROPERTIES OF RF-SPUTTERED ZnO FILMS Lieu, N. T. T. Canh, T. D. Nghia, N. X. Tarigan, Kontan ZnO thin films Preparation Optical properties ZnO/Si films were prepared by radio frequency (RF) magnetron sputtering at room temperature. By optimizing the heat treatment conditions, we obtained a good quality film annealed at 700 ºC for longer 60 minutes. This process was monitored carefully by Raman scattering spectroscopy, and X-ray diffraction. The photoluminescence study on this film revealed that only ultraviolet emissions due to donor-acceptor pair (DAP), neutral acceptor-bound exciton (AºX) and donor-bound exciton (DºX) were observed. The intensity and peak position of these emissions depend on the measurement temperature and excitation power density. Universitas Mercu Buana 2015-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18887 10.22441/ijimeam.v1i1.18887 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 1 No. 1 (2015); 32-38 2477-5428 2477-541X 10.22441/ijimeam.v1i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18887/pdf Copyright (c) 2015 N. T. T. Lieu, T. D. Canh, N. X. Nghia, Kontan Tarigan

oai:ojs.pkp.sfu.ca:article/18915 2026-09-05T08:07:24Z ijimeam:ART driver

Optimized Frame Design for Head Loss Testing Equipment Through Material Strength Analysis Wermasaubun, Hendrikus Fitri, Muhamad Hamid, Abdul Romahadi, Dedik head loss testing equipment structural frame design material strength analysis SolidWorks simulation ASTM A500 hollow sections This article presents the design and analysis of a frame for head loss testing equipment, crucial for evaluating flow losses in pipe installations. The objective was to develop a robust yet lightweight frame that could withstand the operational loads imposed by the testing equipment. The frame, which supports essential components such as pipes, venturi meters, elbows, and reducers, was constructed using ASTM A500 hollow sections with dimensions of 20 x 20 x 1.6 mm and 35 x 35 x 1.6 mm. These dimensions were selected for their balance between strength and weight, validated through strength analysis and SolidWorks simulations. Conducted at Universitas Mercu Buana, the project involved the design, manufacturing, and testing of the frame to determine its load-bearing capacity. The results from the SolidWorks simulations confirmed the frame's structural integrity, which was further validated by its successful application in a practical setup. This study demonstrates the effectiveness of a systematic design approach, integrating material selection, load analysis, and simulation to achieve an optimal solution. The findings contribute valuable insights into the use of ASTM A500 hollow sections in structural applications, particularly where both strength and weight are critical. This work sets a precedent for future designs in mechanical engineering, offering a reliable framework for developing durable and efficient testing equipment. Universitas Mercu Buana 2024-08-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18915 10.22441/ijimeam.v6i1.18915 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 1 (2024); 22-37 2477-5428 2477-541X 10.22441/ijimeam.v6i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18915/pdf Copyright (c) 2024 Hendrikus Wermasaubun, Muhamad Fitri, Abdul Hamid, Dedik Romahadi https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/18943 2023-10-16T05:27:11Z ijimeam:ED driver

Message from the Chief Editor Publikasi, Admin Universitas Mercu Buana 2016-08-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18943 10.22441/ijimeam.v2i1.18943 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 2 No. 1 (2016) 2477-5428 2477-541X 10.22441/ijimeam.v2i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18943/6501 Copyright (c) 2016 Admin Publikasi

oai:ojs.pkp.sfu.ca:article/18944 2023-10-16T05:27:11Z ijimeam:ART driver

SYNTHESIS AND CHARACTERIZATION OF TOLUENE SULFONIC ACID (TSA)-DOPED POLYPYRROLE NANOPARTICLES: EFFECTS OF DOPANT CONCENTRATIONS Alva, S. Utami, R. S. Shyuan, L. K. Puspasari, I. Mohammad, A. B. nanoparticle polypyrrole conducting polymer sulfonic acid conductivity Nanoparticles of the conducting polymer polypyrrole in toluene sulfonic acid (PPy/TSA) were synthesized and characterized. The polymerization was process carried out in situ using ammonium persulfate (APS) as an oxidant. The particles were synthesized by varying the dopant concentration of para-toluene sulfonic acid over five sulphonic acid concentrations. The main objective of this study was to examine the effect of TSA dopant concentrations on the properties of polypyrrole nanoparticles. Understanding nature and characteristics of polypyrrole/TSA nanoparticles are important in determining whether the nanoparticles have the potential to be a component in the manufacture of fuel cells. The conducting polymer particles synthesized in this study were characterized using a particle analyzer, X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), spectroscopy UV-visible (UV-vis), thermogravimetric analysis (TGA) and electrical conductivity measurement. XRD shows that the particles generated possessed an amorphous structure, as also indicated by SEM images revealing the formation of aggregated and granular composite particles. Furthermore, the FTIR peak between 1273 and 1283cm-1 indicated that sulfonic acids (SO3-) groups were present in the structure of PPy. The size of the PPy/TSA nanoparticles was determined to be approximately 24-51 nm, and their conductivity measured to be 1.3 x 10-1 S/cm. Universitas Mercu Buana 2016-08-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18944 10.22441/ijimeam.v2i1.18944 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 2 No. 1 (2016); 1-9 2477-5428 2477-541X 10.22441/ijimeam.v2i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18944/6502 Copyright (c) 2016 S. Alva, R. S. Utami, L. K. Shyuan, I. Puspasari, A. B. Mohammad

oai:ojs.pkp.sfu.ca:article/18945 2023-10-16T05:27:11Z ijimeam:ART driver

OPTIMIZATION OF SCREEN PRINTED REFERENCE ELECTRODE BASED ON CHARGE BALANCE AND POLY (BUTYL ACRYLATE) PHOTOCURABLE MEBRANE Alva, S. Heng, L. Y. Ahmad, M. Reference Electrode Screen Printed Electrode Poly(Butyl Acrylate) Photocurable Membrane This research focus on transforming the traditional design of reference electrode into all-solid-state reference electrode front-end using Ag/AgCl screen- printed electrodes. By replacing the internal reference solution of a traditional reference electrode by a solid photocurable membrane, an all-solid-state reference electrode can be achieved. The solid-state screen-printed reference electrode was designed using a photocurable acrylic film containing immobilized sodium tetrakis [3,5-bis(trifluoromethyl)phenyl] borate (NaTFPB) and trimethylocthylammonium chloride (TOMA-Cl). An optimum ratio of NaTFPB:TOMA-Cl = 1:1 produced a stable reference electrode. In the anions interference studies, all anions i.e. NO3-, Cl-, Br- and SO42- does not give effect to the SPRE except perchlorate anions. The all-solid-state reference electrodes was applied to the detection of potassium ions and ammonium ions. Validation of the all-screen-printed reference electrode was performed with reference electrode standard gel type. The validation results showed that all-solid-state screen-printed reference electrode demonstrated performance that was comparable to standard reference electrode. Universitas Mercu Buana 2016-08-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18945 10.22441/ijimeam.v2i1.18945 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 2 No. 1 (2016); 10-15 2477-5428 2477-541X 10.22441/ijimeam.v2i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18945/6503 Copyright (c) 2016 S. Alva, L. Y. Heng, M. Ahmad

oai:ojs.pkp.sfu.ca:article/18950 2023-10-16T05:27:11Z ijimeam:ART driver

NATRIUM CARBONATE (NA2CO3) AS INHIBITOR IN THE CORROSION PROTECTION ON STEEL PIPE ST 41 IN WATER PLUMBING ENVIRONMENTAL Arwati, I. G. A. Izzati, T. Arifin, Z. carbon steel St41 inhibitor corrosion corrosion rate polarization resistance potentiodynamic This study aimed to analyze the effect of adding to the rate of steel corrosion inhibitor and comparing the rate of corrosion on steel pipes with and without inhibitors. The testing conducted in Puspitek shown that the most optimum of the inhibitor contained with the addition of 1% due to changes of the pH from 7.30 to 11.80. This shows the increasing of pH occurred sizable value and followed by the declines of potential value (Ecorr) -700.53 mV to -512.39 mV. Thus, the decreasing occurred to the current corrosion value (Icorr) from 2.71 μA/cm2 to 0.31 μA/cm2, while the corrosion rate of carbon steel St 41 decreased most effective after adding 1% Na2CO3 as an inhibitor, the corrosion rate is changed from 1.2437 mpy to 0.1427 mpy. Universitas Mercu Buana 2016-08-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18950 10.22441/ijimeam.v2i1.18950 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 2 No. 1 (2016); 20-25 2477-5428 2477-541X 10.22441/ijimeam.v2i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18950/6504 Copyright (c) 2016 I. G. A. Arwati, T. Izzati, Z. Arifin

oai:ojs.pkp.sfu.ca:article/18951 2023-10-16T05:27:11Z ijimeam:ART driver

HIGH RESOLUTION IMAGING OF BORON DISTRIBUTION ON DIAMOND FILM USING ENERGY FILTERED TEM Dimyati, A. Purwanto, S. Iskandar, R. boron doped diamond film CVD ESI EFTEM The main difficulty in investigation of thin film systems is the lack of capability to get detail information of the material in nano level due to the low resolution of conventional imaging techniques such as SEM, SIMS etc. In this work Electron Spectroscopy Imaging (ESI) in energy filtered transmission electron microscope (EFTEM) was used to produce a real image of boron distribution in a diamond film deposited on (111) Si by chemical vapor deposition. The result revealed the layer consists of 1.3 μm thick diamond structured carbon film adjacent to Si substrate and 120 nm amorph carbon layer on top most surface. Boron atoms were distributed uniformly in both layer, however slight higher concentration in the second layer is observed. There was obviously no grain boundary enrichment of Boron atoms observed. Universitas Mercu Buana 2016-08-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18951 10.22441/ijimeam.v2i1.18951 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 2 No. 1 (2016); 16-19 2477-5428 2477-541X 10.22441/ijimeam.v2i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18951/6505 Copyright (c) 2016 A. Dimyati, S. Purwanto, R. Iskandar

oai:ojs.pkp.sfu.ca:article/18953 2023-10-16T05:27:11Z ijimeam:ART driver

EFFECT OF ANNEALING ON MAGNETIC AND STRUCTURAL PROPERTIES OF THE NANOCRYSTALLINE Fe-Mn-Al ALLOYS Tarigan, Kontan Sebayang, Darwin Fe55Mn10Al35 nanocrystalline alloys Annealing process Magnetic and structures properties In this work, the formations of Fe55Mn10Al35 nanocrystalline alloys were made by using mechanical alloying (MA) technique with the milling time of 24 hrs and then annealed at 300, 500, and 700oC. The sizes and the morphology of the particles were checked by using a Scanning Electron Microscope (SEM). The magnetic properties were characterized by using a Vibration Sample Magnetometer (VSM), and it give results both of the magnetic saturation (Ms) and Coercivity (Hc) are decreased respect to annealing temperatures. Last one; the structures were characterized by using an Extended X-ray Absorption Fine Structure (EXAFS) and X-Ray Diffraction (XRD). It give results that the structures were single phase at 24 hrs milled and 300oC annealed, then the structure to be changed at 500 and 700oC. Universitas Mercu Buana 2016-08-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18953 10.22441/ijimeam.v2i1.18953 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 2 No. 1 (2016); 26-30 2477-5428 2477-541X 10.22441/ijimeam.v2i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18953/6506 Copyright (c) 2016 K. Tarigan, D. Sebayang

oai:ojs.pkp.sfu.ca:article/18955 2023-10-16T05:27:11Z ijimeam:ART driver

BIODIESEL PRODUCTION FROM WASTE COOKING OIL BY USING ULTRASONIC TUBULAR REACTOR Agustian, E. Praptijanto, A. Sebayang, D. Rus, A. Z. M. Hasan, S. Ultrasonic tubular reactor biodiesel waste cooking oil Sonochemistry cavitation transesterification The aim of this research is to find an optimum of synthesis biodiesel from waste cooking oil (WCO) using ultrasonic tubular reactor. The experimental studies explored the variations in reaction time, molar ratio WCO to methanol (MeOH), amount of catalyst, frequency of ultrasonic and output power ultrasonic on the ester contents. Comparisons of type ultrasonic and also mechanical stirring method based on time reaction were investigated. The optimum results of biodiesel process is the reaction time of 5 minute, NaOH catalyst 1%wt of WCO, molar ratio WCO to MeOH of 1:6, frequency ultrasonic of 20 KHz and output power ultrasonic of 650 W. The reaction time reduced 12-24 times compared to both of method and the yield of ester contents was obtained at 96.54%wt. Universitas Mercu Buana 2016-08-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18955 10.22441/ijimeam.v2i1.18955 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 2 No. 1 (2016); 31-38 2477-5428 2477-541X 10.22441/ijimeam.v2i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18955/6507 Copyright (c) 2016 E. Agustian, A. Praptijanto, D. Sebayang, A. Z. M. Rus, S. Hasan

oai:ojs.pkp.sfu.ca:article/18956 2023-10-16T05:27:11Z ijimeam:ART driver

DEVELOPMENT OF INTEGRATED GAS INSTRUMENTATION SYSTEM IN DIRECT REDUCTION PLANT Adriansyah, A. Rahman, F. Direct Reduction Process Specific Gravity (SG) Direct reduction is the removal of oxygen from iron without melting process. In direct reduction process, the presence of mixture gas in accordance levels largely determines the performance of the iron produced. Therefore, it needs gas sensors system which has high accuracy and reliability in this process. Unfortunately, there are some things that cause decreasing in the accuracy and reliability of the gas sensor in this process. This paper aims to offer a system that can preserve the accuracy and reliability of the gas measurement system called as Integrated Gas Instrumentation System. The system tends to integrate gas sensor component using Specific Gravity (SG) with other components, such as water trap, filter regulator and monitor gas flow rate. The values of Specific Gravity Meter based on process that display in DCS system are compared with lab results for three type of experiments. Based on experiment results it can be said that the proposed system is able to improve the accuracy and reliability of direct reduction process. Universitas Mercu Buana 2016-08-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18956 10.22441/ijimeam.v2i1.18956 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 2 No. 1 (2016); 39-45 2477-5428 2477-541X 10.22441/ijimeam.v2i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18956/6508 Copyright (c) 2016 A. Adriansyah, F. Rahman

oai:ojs.pkp.sfu.ca:article/18957 2023-10-16T05:27:11Z ijimeam:ART driver

LIFE EXTENSION TECHNIQUE FOR WELDED STRUCTURE USING HFMI/PIT: A REVIEW ON PAST AND CURRENT RESEARCHES WITH APPLICATIONS Manurung, Y. H. P. Mohamed, M. A. Andud, D. Abidin, A. Z. Saidin, S. Kasim, K. Ishak, D. P. HFMI PIT Weld Fatigue Integrity IIW In this paper, High Frequency Mechanical Impact (HFMI) using Pneumatic Impact Treatment (PIT) which can be applied for new or aging welded structure towards asset integrity will be discussed. The technology HFMI/PIT which falls under post weld treatment process is primarily aimed to enhance fatigue life and to strengthen welded joint. At first, the basic principle on fatigue of welded structure based on the IIW Recommendation will be briefly described. Further, various investigations conducted by prominent research universities or institutions and various industrial applications in European countries will be reviewed and discussed. Lastly, the current research on application of HFMI/PIT carried out under Advanced Manufacturing Technology Excellence Centre (AMTEx) at Faculty of Mechanical Engineering UiTM Shah Alam will be presented. As conclusion, it is stated that HFMI/PIT can be applied for extending the structural life and also for design optimization. Universitas Mercu Buana 2016-08-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18957 10.22441/ijimeam.v2i1.18957 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 2 No. 1 (2016); 46-60 2477-5428 2477-541X 10.22441/ijimeam.v2i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18957/pdf Copyright (c) 2016 Y. H. P. Manurung, M. A. Mohamed, D. Andud, A. Z. Abidin, S. Saidin, K. Kasim, D. P. Ishak

oai:ojs.pkp.sfu.ca:article/18974 2026-09-05T08:15:32Z ijimeam:ART driver

STRENGTH ANALYSIS OF A WUXI TUNNEL SHAFT USING FINITE ELEMENT METHOD Sisliana, Azara Vigha Romahadi, Dedik Imran, Muhammad Wuxi Tunnel Shaft Finite Element Method The Wuxi Tunnel is a machine for producing mochi ice cream from China. One of the most important components in the ongoing production is the shaft. A shaft is a stationary rotating part, usually of a circular cross-section, to which elements such as gears, pulleys, cranks, sprockets, and other rotational transfer elements are attached. The load received by the shaft comes from the product and materials. The load was too heavy and worked continuously, resulting in the shaft breaking 3 times and not being straight. The purpose of this research is to analyze the shaft to determine the type of material and recommended dimensions so that the strength of the shaft is maintained and to determine the stress that occurs on the shaft due to the load from the product and other materials. The research method used in this study is the finite element method using Autodesk Inventor Pro software and manual calculations so that later, the results of the type of material and dimensions suitable for the shaft will be used. The analysis results show that the shaft can withstand loads at a diameter of 50 mm on the type of material AISI 4340 Annealed. The von Mises result for manual calculations is 294.2578 MPa, and the von Mises result for finite elements is 275.5 MPa. The allowable stress is 470 MPa. So that, AISI 4340 material with a recommended large diameter of at least 50 mm is a safe shaft limit that can be used at PT. X because the von Mises value is lower than other types of materials, and a safety factor of 1.71 is more than >1. Universitas Mercu Buana 2023-04-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18974 10.22441/ijimeam.v5i1.18974 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 1 (2023); 1-8 2477-5428 2477-541X 10.22441/ijimeam.v5i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/18974/pdf Copyright (c) 2023 Azara Vigha Sisliana, Dedik Romahadi, Muhammad Imran https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/19248 2023-10-16T05:18:06Z ijimeam:ART driver

MATERIAL SELECTION OF PROPOSED AIR RECEIVER TANK APPLIED FOR ELECTRICAL GENERATOR Kamaludin, Reza Sundari, Rita Sudarsono, Agus Anggraini, Rini air receiver tank corrosion factor thickness design MAWP Air receiver tank in electrical generator used as pressured air vessel is mainly consisted of shell cylinder and head part. This work has searched for the more suitable material to be used for the shell and head of the proposed air receiver tank because the older material (SPV 355) has some limitations. This study has been conducted based on several parameters in standard references. The calculations have applied relevant technical formulas such as corrosion factor, thickness design, and Maximum Allowable Working Pressure (MAWP). There are three types of selected materials available that are expected to yield similar previous condition parameters addressing to operational pressure 10 bar and temperature 40oC, i.e., SA-36 (Type I), SA-516 Gr 70 (Type II), and SS-304 (Type III). The economic factor is also taken into consideration. Considering the economic cost and mechanical characteristics, finally the material of Type II is selected to be the most appropriate material to replace SPV 355 material for the proposed air receiver tank. In the upcoming, this study is useful for the knowledge of material design. Universitas Mercu Buana 2023-05-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19248 10.22441/ijimeam.v4i3.19248 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 3 (2022); 81-85 2477-5428 2477-541X 10.22441/ijimeam.v4i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19248/pdf_1 Copyright (c) 2022 Reza Kamaludin, Rita Sundari, Agus Sudarsono

oai:ojs.pkp.sfu.ca:article/19260 2023-10-16T05:19:08Z ijimeam:ED driver

Message from Editor in Chief Sebayang, Darwin Universitas Mercu Buana 2023-02-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19260 10.22441/ijimeam.v4i2.19260 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 2 (2022) 2477-5428 2477-541X 10.22441/ijimeam.v4i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19260/6548 Copyright (c) 2023 Darwin Sebayang

oai:ojs.pkp.sfu.ca:article/19439 2023-10-16T05:18:06Z ijimeam:ART driver

THE IMPLEMENTATION OF PANDAS PROFILING AS A TOOL FOR ANALYZING MECHANICAL PROPERTIES DATA OF NICKEL-BASED SUPERALLOYS BASED ON ALLOY CHEMICAL COMPOSITION Leni, Desmarita Kusuma, Yuda Perdana Muchlisinalahuddin, Muchlisinalahuddin Sumiati, Ruzita Mayana, Hendri Candra Mechanical Properties Nickel-Based Superalloys Exploratory Data Analysis Pandas Profiling The purpose of this study is to evaluate the mechanical properties of nickel-based superalloys with variations in alloy chemical compositions using the Exploratory Data Analysis (EDA) method with the assistance of the pandas profiling library on Google Colab. In this study, data from 312 tensile tests of nickel-based superalloys were used as research samples, with alloy chemical compositions including carbon (C), manganese (Mn), silicon (Si), chromium (Cr), nickel (Ni), molybdenum (Mo), vanadium (V), nitrogen (N), niobium (Nb), cobalt (Co), tungsten (W), aluminum (Al), and titanium (Ti), as well as mechanical properties such as yield strength (YS), tensile strength (TS), and elongation (EL). The methodology used in this study was the EDA method with the assistance of the pandas profiling library on Google Colab, which enables the automatic creation of a dataset report, presenting information on various aspects such as data structure, descriptive statistics, correlation, distribution, and missing values. The results show that yield strength has a fairly high correlation with titanium (0.51), medium correlations with nickel (0.25), vanadium (0.2), and cobalt (0.2). Tensile strength in nickel-based superalloys has a fairly high correlation with yield strength (0.88), carbon (0.49), and cobalt (0.55), and medium correlations with titanium (0.25) and vanadium (0.25). Elongation in nickel-based superalloys has a negative and fairly high correlation with tensile strength (-0.62) and yield strength (-0.58). Some warnings for missing data and zero values in some variables were identified. These results indicate that the pandas profiling library can be used as a tool to analyze the data of mechanical properties of nickel-based superalloys quickly and easily, and provide clear information on data patterns, data structure, and correlation among data. Universitas Mercu Buana 2023-05-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19439 10.22441/ijimeam.v4i3.19439 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 3 (2022); 86-91 2477-5428 2477-541X 10.22441/ijimeam.v4i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19439/pdf Copyright (c) 2022 Desmarita Leni, Yuda Perdana Kusuma, Muchlisinalahuddin Muchlisinalahuddin, Ruzita Sumiati, Hendri Candra Mayana

oai:ojs.pkp.sfu.ca:article/19441 2023-10-16T05:18:06Z ijimeam:ART driver

ANALYTICAL CALCULATION OF PULLEY AND V-BELT FOR RICE THRESHER POWERED BY MATARI MGX-390 GASOLINE ENGINE Rahman, Faisal Santoso, Deri Teguh Gusniar, Iwan Nugraha Sumarjo, Jojo Matari MGX-390 Rice Threshing V-belt Pulley Gasoline Engine In the agricultural industry today, a lot of tools with automatic transmission have become primary needs for many people. To be able to operate a rice threshing machine, one that can support the running of the tool is the pulley and V-belt on the driving machine. Therefore, this research aims to analyze the pulley and V-belt on the rice thresher with the Matari MGX-390 gasoline engine so that it meets the required criteria and applicable standards. Due to the important role of the V-belt and pulley components, this study will discuss calculations in the design of V-belt and pulley components for a rice thresher with a Matari MGX-390 gasoline engine. The method used is direct observation, to see directly the shape and specifications of the rice thresher machine as well as the Matari MGX-390 gasoline engine used, also to record the dimensions of the pulley and V-belt so that further analysis is carried out on these components, and it can be seen whether the pulley and the V-belt used can be declared safe. Then calculations are carried out to determine the type of V-belt used, V-belt length, maximum voltage, demand voltage, and service life on the V-belt used. Based on the results of the research and calculations that have been carried out, it shows that the V-belt used by the rice thresher with the Matari MGX-390 machine can be declared safe with the type of V-belt used as type A, with a length of 1,649.74 mm, a maximum tension of 138.8 N, voltage requirement 121 N, service life 14,055 working hours. Universitas Mercu Buana 2023-05-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19441 10.22441/ijimeam.v4i3.19441 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 3 (2022); 92-96 2477-5428 2477-541X 10.22441/ijimeam.v4i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19441/pdf Copyright (c) 2022 Faisal Rahman, Jojo Sumarjo, Deri Teguh Santoso

oai:ojs.pkp.sfu.ca:article/19449 2026-09-05T08:09:15Z ijimeam:ART driver

Enhancing Conveyor Belt Performance: Evaluating the Impact of In-creased Capacity Using Belt Analyst Software Golwa, Gian Villany Murdiyati, Sari Satria, Muhammad Kevin conveyor belt performance capacity increase structural simulation belt deflection belt tension analysis This study investigates the effects of increasing conveyor belt capacity from 148.5 tons per hour (t/h) to 180 t/h on the overall system performance, employing both manual measurements and simulations using Belt Analyst software. The research aims to evaluate critical parameters such as effective pulling force, motor power requirements, structural load, and belt deflection, which are essential for determining the feasibility and impact of such an upgrade. The analysis reveals that with the capacity increase, the effective pulling force required rises to 14,072 N, while the motor power usage escalates to 15 kW. Concurrently, the structural load experiences a significant increase from 46.144 kg/m to 56.238 kg/m, and belt deflection intensifies from 22 mm to 27 mm. These findings suggest that increasing the conveyor belt capacity to 180 t/h, may lead to increased stress on the structure and belt, which could potentially affect the lifespan and performance of the conveyor system. Furthermore, while the conveyor system's performance enhances at the higher capacity, it also places additional stress on the system's components. The study further examines the implications of these changes, emphasizing the potential risks to the conveyor belt’s structural integrity and the possible reduction in its lifespan due to the increased mechanical stress. It is highlighted that careful consideration and precise engineering adjustments are necessary when planning capacity enhancements to avoid adverse effects on the system's longevity and reliability. Universitas Mercu Buana 2024-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19449 10.22441/ijimeam.v6i1.19449 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 1 (2024); 57-66 2477-5428 2477-541X 10.22441/ijimeam.v6i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19449/pdf Copyright (c) 2024 Gian Villany Golwa, Sari Murdiyati, Muhammad Kevin Satria https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/19701 2026-09-05T07:56:49Z ijimeam:ART driver

Effect of Water Hyacinth Fiber Length and Content on the Torsional Strength of Epoxy Resin Composites Pramana, Putratama Aziz Fitri, Muhamad Hamid, Abdul Romahadi, Dedik composite material water hyacinth regression method epoxy resin torsion testing This study investigates the influence of water hyacinth fiber length and content on the torsional strength of epoxy resin composites. Utilizing an experimental design, specimens were prepared with varying fiber lengths (10 mm, 20 mm, 25 mm, and 135 mm) and content percentages (4%, 7%, and 10%) and subjected to torsional testing according to ASTM E-143 standards. The primary objective was to determine the optimal fiber configurations that enhance the composite's mechanical properties, particularly its resistance to torsional stress. Results indicated that shorter fiber lengths consistently yielded higher torsional strength, with the 20 mm fibers at a 7% content displaying the highest torque resistance, achieving a maximum of 1.418 Nm and a shear stress of 29.348 MPa. In contrast, longer fibers generally showed diminished performance, likely due to poorer resin penetration and fiber-matrix bonding. Regression analysis was employed to develop predictive models for the torsional behavior based on fiber dimensions and compositions, achieving high accuracy with coefficients of determination (R²) ranging from 0.95 to 1.00, suggesting excellent model fits. These findings underscore the potential of using water hyacinth fibers as effective reinforcement in epoxy composites, particularly at optimal lengths and concentrations. The study contributes to the broader utilization of natural fibers in composites, offering a sustainable alternative to synthetic fibers with beneficial mechanical properties and environmental impacts. Universitas Mercu Buana 2024-10-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19701 10.22441/ijimeam.v6i3.19701 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 3 (2024); 144-151 2477-5428 2477-541X 10.22441/ijimeam.v6i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19701/pdf Copyright (c) 2024 Putratama Aziz Pramana, Muhamad Fitri, Abdul Hamid, Dedik Romahadi https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/19936 2026-09-05T08:15:48Z ijimeam:ART driver

BIODIESEL PRODUCTION FROM WASTE FISH CANNING OIL USING COCOPEAT ASH CATALYST Febriani, Siti Diah Ayu Nofitasari, Prisca Amalia Anwar, Saiful Biodiesel Composite Catalyst Reaction Time Cocopeat Ash Waste Fish Oil Biodiesel is an environmentally friendly alternative fuel for diesel engines. The research studies the extraction process of biodiesel from waste produced by a fish canning factory using a heterogeneous catalyst known as cocopeat ash. The experiment was designed utilizing a completely randomized design with two factorial treatments and four repetitions. The primary factor under investigation was the composition of the catalyst, specifically 3%, 5%, and 7% w/v methanol. The second factor examined was the reaction time of either 60 minutes or 120 minutes. Data analysis revealed variations in density, viscosity, acid number, and Free Fatty Acids (FFA) in fish oil before and after refinement. The treatment that yielded the highest results was A3B2, featuring a catalyst composition of 7% and a reaction time duration of two hours, which achieved an impressive biodiesel yield of 81%. Moreover, several parameters tested for compliance with SNI-04-7182-2015 standards showed positive outcomes. These parameters include a density value measuring 876.3 kg/m³, the flash point around 160°C, iodine number reaching 16.36 g/100g, and heating value 47.47 MJ/Kg. Universitas Mercu Buana 2023-04-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19936 10.22441/ijimeam.v5i1.19936 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 1 (2023); 9-15 2477-5428 2477-541X 10.22441/ijimeam.v5i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/19936/pdf Copyright (c) 2023 Siti Diah Ayu Febriani, Prisca Amalia Nofitasari, Saiful Anwar https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/20684 2023-10-16T05:18:06Z ijimeam:ED driver

Message from Chief Editor Wibowo, Ignatius Agung Universitas Mercu Buana 2023-05-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/20684 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 4 No. 3 (2022) 2477-5428 2477-541X 10.22441/ijimeam.v4i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/20684/pdf Copyright (c) 2023 Ignatius Agung Wibowo

oai:ojs.pkp.sfu.ca:article/20898 2026-09-05T08:13:28Z ijimeam:ART driver

ANALYSIS OF FIRE FIGHTING PUMP PERFORMANCE USING SNI 03-6570-2001 STANDARD ON SELF-CONTAINED HYDRANTS Auf, Abdurrahman Biantoro, Agung Wahyudi Romahadi, Dedik Chaeroni, Amat Flowrate Head Hydrants Pump Self-controlled hydrants are fire protection systems located in residential areas that function for early fire extinguishing. In a fire protection system, the pump plays an important role in supplying water from the reservoir to the end point of the installation. Fire pumps must always be in optimum condition and accordance with applicable standards. This study aims to analyze pump performance at current conditions in self-contained hydrants in the Palmerah District and then compare it with the performance that pumps should have in ideal conditions according to SNI 03-6570-2001 standards. The method used is a quantitative descriptive analysis method by comparing the current condition of the pump with applicable standards and conducting a direct survey of the location of the installed fire pump. The measuring instruments used in the study were a pressure gauge, control box, and pitot gauge. The results obtained through testing and calculating pump performance The pump installed on the self-contained hydrant in actual conditions with a total head of 86.62 m produces a flowrate of 0.0189 m3/s at 2800 RPM and can flow a maximum flowrate of 0.0284 m3/s with a head of 66.94 m while in ideal conditions with approximately the same speed and total pump head of 88.83 m, The pump produces a flow rate of 0.0473 m3/s and can produce a maximum flowrate of 0.0710 m3/s with a head of 71.81 m and when shut-off (Q = 0) at actual and ideal conditions produces a same total pump head 94.10 m. However, the pump in actual conditions can flow a minimum flowrate required of 0.040 m3/s with a pressure required of 350 kPa at 3000 RPM with a total pump head of 108.52 m. Thus, the pump must operate heavier due to the higher total head to deliver the required minimum flow rate and pressure. Universitas Mercu Buana 2023-12-26 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/20898 10.22441/ijimeam.v5i2.20898 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 2 (2023); 49-55 2477-5428 2477-541X 10.22441/ijimeam.v5i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/20898/pdf Copyright (c) 2023 Abdurrahman Auf, Agung Wahyudi Biantoro, Dedik Romahadi, Amat Chaeroni https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/21605 2026-09-05T08:16:10Z ijimeam:ART driver

COMPARISON OF THE DRYER AIR INLET POSITION ON THE SPRAY DRYER WITH A DOUBLE CONDENSER TO PRODUCE A ROTATING FLOW THROUGHOUT THE DRYING CHAMBER: CFD ANALYSIS Ruhyat, Nanang Dry Air Inlet Drying Process Material Discrete Random Walk CFD Spray-Dryer Simulation of the drying air and the spray of liquid in the spray dryer chamber with Discrete Phase Material (DPM) and Discrete Random Walk (DRW) was presented in this study using CFD methods to analyze the drying liquid. The main problem in spray drying is the adhesion of the material to the drying chamber walls, which causes uneven drying material. This adhesion can slow down the drying process and reduce productivity. The design of the drying air inlet into the drying chamber becomes essential to research. Variations in the position of the drying air inlet into the drying chamber are carried out in the 3D spray dryer room to see the mechanism of the centrifugal velocity of the drying airflow, which can improve uniform mixing with flow resistance due to friction with small walls and the drying air velocity. This phenomenon is impossible to observe in experiments. A geometric model consisting of 1,054,000 hexa-mesh elements at the area around the nozzle, the top spot of the chamber and the remaining area covered with a tetrahedral mesh, was determined to predict velocity, temperature, and fluid flow behavior. The first position, the dryer air inlet, is at an angle from the diameter of the spray drying chamber. The second position is in the middle of the diameter of the drying chamber. The position of the first inlet produces a more even temperature contour with a more tangential velocity due to the small frictional resistance with the walls. At the same time, the second position is not recommended because the flow leads to one side of the wall and creates sticking and even material buildup. A double-heated condenser can dry air at moderate temperatures, and it is a very effective drying product— positioning the dryer air inlet into the drying chamber, achieving the economical production of high-quality products. Universitas Mercu Buana 2023-04-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/21605 10.22441/ijimeam.v5i1.21605 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 1 (2023); 16-25 2477-5428 2477-541X 10.22441/ijimeam.v5i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/21605/pdf Copyright (c) 2023 Nanang Ruhyat https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/21679 2026-09-05T08:13:48Z ijimeam:ART driver

OPTIMIZATION OF MACHINING PARAMETERS ON THE SURFACE ROUGHNESS OF ALUMINUM IN CNC TURNING PROCESS USING TAGUCHI METHOD Putra, Yunata Mandala Timuda, Gerald Ensang Darsono, Nono Chollacoop, Nuwong Khaerudini, Deni Shidqi Taguchi Method CNC Surface Roughness Orthogonal Array Aluminum Alloy 6063 In this research, Taguchi method is employed by focusing on spindle speed, feed rate, and depth of cut to optimize the CNC turning parameters for aluminum alloy 6063. The main goal of this study is to improve the surface roughness of the material. A L9 orthogonal array is used for experimentation, and the results are subsequently analyzed using ANOVA (Analysis of Variance). A spindle speed of 1300 rpm, a feed rate of 0.5 m/min, and a depth of cut of 1.5 mm are the optimal conditions to achieve the minimum average surface roughness (Ra). The main effect plot of the signal-to-noise (S/N) ratio provides significant evidence supporting the primary research goal. Furthermore, the ANOVA table reveals that spindle speed contributes 59.71%, feed rate contributes 29.80%, while depth of cut only contributes minimally at 0.72%. Based on the research findings, spindle speed and feed rate can be adjusted to control surface roughness. Both factors are highly significant in influencing the surface roughness of the material. The prediction equation from the linear regression analysis is Ra = 1.745 – 0.001024 spindle speed + 0.3000 feed rate – 0.0233 depth of cut. A coefficient of determination or R-squared value of 0.9115 indicates that the independent variables can explain 91.15% of the variation in the dependent variable. The experimental and predicted surface roughness (Ra) values have a predicted error percentage of 2.26%. Universitas Mercu Buana 2023-12-27 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/21679 10.22441/ijimeam.v5i2.21679 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 2 (2023); 56-62 2477-5428 2477-541X 10.22441/ijimeam.v5i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/21679/pdf Copyright (c) 2023 Yunata Mandala Putra, Gerald Ensang Timuda, Nono Darsono, Nuwong Chollacoop, Deni Shidqi Khaerudini https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/21859 2026-09-05T08:14:14Z ijimeam:ART driver

EFFECT OF SiO2 AND ZnO NANOPARTICLES TO INCREASE REFRIGERATION MACHINE PERFORMANCE Irwansyah, Dandi Sundari, Rita Anggraini, Rini Arifin, Khuzaimah Nanoparticle Nanofluid Refrigerant Refrigeration Engine Performance In this investigation, the impact of silicon dioxide (SiO2) and zinc oxide (ZnO) nanoparticles on the performance of a refrigeration machine system was systematically examined. The focus was on evaluating the coefficient of performance (COP) concerning the utilization of a polyolester (POE) lubricant, R600a refrigerant, and distinct nanoparticles (SiO2 and ZnO) within the refrigeration system. The nanoparticles were individually introduced into the R600a refrigerant in masses of 0.5 g, 1.0 g, and 1.5 g. The experimental outcomes demonstrated a noteworthy enhancement in COP with the addition of nanoparticles. Specifically, the introduction of 1.5 g of SiO2 resulted in a substantial increase of 25.88% in COP, marking it as the most influential dosage. Similarly, the addition of 1.0 g of ZnO led to a significant COP increase of 13.6%, representing the optimal quantity for ZnO. Furthermore, the inclusion of 1.5 g of SiO2 brought about a remarkable reduction in energy consumption, with a decrease of 25.58%, while 1.5 g of ZnO resulted in a notable 16.28% decrease in energy consumption. The experimental configuration involved the use of 20 g of refrigerant and 500 ml of POE lubricant. Comparative analysis demonstrated that the refrigeration system incorporating nanoparticles outperformed the conventional R600a refrigeration system devoid of nanoparticles. This study contributes valuable insights into the potential enhancements in refrigeration system efficiency through the strategic incorporation of SiO2 and ZnO nanoparticles, offering a promising avenue for optimizing the performance of refrigeration technology. Universitas Mercu Buana 2023-12-27 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/21859 10.22441/ijimeam.v5i2.21859 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 2 (2023); 63-68 2477-5428 2477-541X 10.22441/ijimeam.v5i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/21859/pdf Copyright (c) 2023 Dandi Irwansyah, Rita Sundari, Rini Anggraini, Khuzaimah Arifin https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/21942 2026-09-05T08:16:28Z ijimeam:ART driver

EXPERIMENTAL STUDY OF COMPRESSOR ENCLOSURE WITH PYRAMID ACCOUSTIC FOAM Noviana, Agus Sudjadi, Usman Sound Acoustic Enclosure Compressor Enclosure Foam Acoustic Absorber This study investigates the performance of compressor enclosures for noise absorption, reverberation, and machine ventilation to ensure a safe and healthy working environment for people. The Multi pro air compressor model BC 150 DMBW 1.5 HP is placed in an enclosure made of wood board, and for absorbing material, use 6 cm thick polyurethane pyramid foam. A fan with a flow rate of 280 CMH is used as a cooling medium and will operate simultaneously with the compressor operation. Flow Air Delivery (FAD) of the compressor is 126 L/min. The Sound Pressure Level (SPL) value is determined using a sound level meter before and after the compressor uses the enclosure. In addition, the enclosure's room temperature is recorded within 30 minutes of operation to determine whether there is a significant increase in heat to ensure that the enclosure for this compressor is still within safe limits. Based on the test results, it is known that after a 30-minute operation, the temperature rises from 29 OC to 65 OC in the inlet on the enclosure with the fan off, and the temperature rises from 29 OC to 51 OC on the enclosure with the fan on. While from the results of measuring the sound noise level, taken at a distance of 1 meter outside the enclosure, there is no significant difference, with or without using a fan, the decrease in sound noise level is only about 10 dB, which is 84 dB before using the enclosure, to 74 dB after using the enclosure. So, it can be concluded that the use of fans as coolers is quite effective in maintaining the temperature of the enclosure space when compared to natural cooling through ventilation, but the use of enclosures using pyramid foam material is not effective for reducing the noise level produced by the compressor when operating. Universitas Mercu Buana 2023-04-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/21942 10.22441/ijimeam.v5i1.21942 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 1 (2023); 26-33 2477-5428 2477-541X 10.22441/ijimeam.v5i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/21942/pdf Copyright (c) 2023 Agus Noviana https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/22300 2026-09-05T08:16:45Z ijimeam:ART driver

ADVANCING ENERGY CONSERVATION AND SUSTAINABLE BUILDING PRACTICES THROUGH COMPREHENSIVE THERMAL-COOLING LOAD ANALYSIS IN AIRPORT BUILDING Yulia, Fayza Harianja, Valeska Bonadharma, Nathan Pajri, Noval Irsan, Naufal HVAC System Airport Building Cooling Load Panasonic Heat Load Software Duct Sizing The global discussion on conserving energy's importance has persisted, paralleling the surge in energy use over two decades. This rise presents challenges for local energy supply to diverse buildings. Designing energy-efficient buildings has become crucial in reducing energy usage and promoting sustainability. This research comprehensively analyzed and assessed thermal-cooling loads within an airport building using Panasonic software. The investigation primarily focuses on evaluating cooling load and thermal dynamics within the airport facility, emphasizing enhancing energy efficiency, and ensuring thermal comfort. Additionally, duct sizing design was conducted to achieve a comprehensive HVAC installation. From the result of the investigation, it was found that the highest Cooling Load at the airport occurs at 4:00 PM, aligning with the peak temperature resulting from heat transmitted into the building, reaching 263,591 Watts for the Airport Lounge and 82,202 Watts for the Luggage Room. Building energy management must be undertaken to minimize the energy consumption during that period. By thoroughly examining thermal-cooling loads within an airport building, this research contributes to decision-making for designing and operating HVAC systems, thereby advancing sustainable building practices. Universitas Mercu Buana 2023-04-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/22300 10.22441/ijimeam.v5i1.22300 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 1 (2023); 34-42 2477-5428 2477-541X 10.22441/ijimeam.v5i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/22300/pdf Copyright (c) 2023 Fayza Yulia, Valeska Harianja, Nathan Bonadharma, Noval Pajri, Naufal Irsan https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/22791 2023-10-16T05:16:23Z ijimeam:ED driver

Message from Editor in Chief Sebayang, Darwin Universitas Mercu Buana 2023-04-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/22791 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 1 (2023) 2477-5428 2477-541X 10.22441/ijimeam.v5i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/22791/pdf Copyright (c) 2023 Darwin Sebayang

oai:ojs.pkp.sfu.ca:article/23014 2024-08-30T00:05:52Z ijimeam:ED driver

Message from Editor in Chief Sebayang, Darwin Universitas Mercu Buana 2023-12-27 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23014 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 2 (2023) 2477-5428 2477-541X 10.22441/ijimeam.v5i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23014/pdf Copyright (c) 2023 Darwin Sebayang

oai:ojs.pkp.sfu.ca:article/23244 2026-09-05T08:10:52Z ijimeam:ART driver

PLANNING AND FEASIBILITY STUDY OF A HYBRID SOLAR POWER PLANT WITH AN ADDED AUTOMATIC TRANSFER SWITCH (ATS) FOR AN OFFICE BUILDING Buana, Chandra Yunus, Muhammad Yusuf Abbas, Muhammad Daffa Ashari, Rizal Sari, Nita Sri Indah Hybrid Power Plant Automatic Transfer Switch HOMER Pro Solar PV Office Building The Office of the Regent of Sidenreng Rappang (Sidrap), situated on Harapan Baru Street, Batu Lappa, Watang Pulu District, Sidrap Regency, South Sulawesi, consumes 200 kWh of electricity daily for lighting, resulting in substantial energy costs. Recognizing the potential for renewable energy, especially with a daily solar radiation potential of 5.8 kWh/m2, this study proposes the implementation of a hybrid solar power plant system. The system incorporates Photovoltaic (PV) as the primary energy source, with the Grid and Generator serving as backup sources through an AC Coupling configuration utilizing Automatic Transfer Switch (ATS). The research employs a simulation approach using HOMER Pro software for system modeling, SketchUp software for solar panel layout, AutoCAD software for ATS circuit modeling, and theoretical calculations for financial analysis. The results indicate a solar power plant capacity of 39.6 kW, producing 75,701 kWh/year with an impressive 83.3% renewable penetration. From an economic standpoint, the project requires an investment of IDR 642,714,960, with a net present cost of IDR 1,573,177,823, and a cost of energy value of IDR 1,401.38/kWh. In terms of feasibility, the project demonstrates a net present value exceeding zero (IDR 216,680,041), a profitability index greater than one (1.33), an internal rate of return surpassing the credit interest rate (12.488%), and a payback period of 7 years and 7 months. These findings affirm the feasibility of the hybrid solar power plant planning project for the Sidrap Regent's Office, showcasing its economic viability and potential for sustainable energy solutions. Universitas Mercu Buana 2023-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23244 10.22441/ijimeam.v5i3.23244 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 3 (2023); 77-87 2477-5428 2477-541X 10.22441/ijimeam.v5i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23244/pdf Copyright (c) 2023 Chandra Buana, Muhammad Yusuf Yunus, Muhammad Daffa Abbas, Rizal Ashari, Nita Sri Indah Sari https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/23245 2026-09-05T08:14:32Z ijimeam:ART driver

PLANNING STUDY OF HYBRID POWER PLANT SOLAR PV-DIESEL GENERATOR ON KODINGARE ISLAND, SINJAI REGENCY Yunus, Muhammad Yusuf Lewi, Lewi Rijal, Andi Saiful Huda, Nur Ikram, Ahmad Hybrid Power System HOMER Pro Solar PV Diesel Generator Kodingare Island is located in Pulau Sembilan District, Sinjai Regency, one of nine islands. Currently, most people still rely on conventional energy from diesel power plants. The reason is that this island does not yet receive an electricity supply from the electricity grid due to the geographical limitations of the archipelago. It is known that the most potential renewable energy source on Kodingare Island is solar energy, with a potential for solar radiation reaching 5.86 kWh/m2/day. This research aims to analyze an innovation that combines PV and solar, where PV acts as the main electricity generator, while solar functions as a backup and additional energy source. The method used in this research uses simulation methods, layout modeling, and financial analysis using HOMER Pro simulation software to determine the potential and performance of hybrid power plants and SketchUp Pro software to produce three-dimensional layouts and economic and feasibility values obtained through financial analysis. Technical aspects include producing an electrical energy system of 37,029 Wh/year, consisting of PV of 32,981 Wh/year and solar of 4,048 Wh/year with energy consumption of 33,850 Wh/year. The required fuel consumption is 2,086 L/year, with excess electricity of 931 kWh/year and renewable energy penetration of 89.1%. From an economic perspective, planning this hybrid power system requires an investment of 258.290.000 IDR, O&M costs of 19.350.600 IDR, and the cost of energy value of 1,352/kWh IDR. In contrast, from the feasibility aspect of planning a hybrid electric power system, it is said to be feasible because it produces a Net Present Value of 9,870,151 IDR, is more significant than zero, the Profitability Index is 1.03 greater than one, the Internal Rate of Return is 8.90% greater than the credit interest rate of 8.43% and the Payback Period required for return of capital is nine years nine months. Universitas Mercu Buana 2023-12-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23245 10.22441/ijimeam.v5i2.23245 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 2 (2023); 69-76 2477-5428 2477-541X 10.22441/ijimeam.v5i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23245/pdf Copyright (c) 2023 Muhammad Yusuf Yunus, Lewi Lewi, Andi Saiful Rijal, Nur Huda, Ahmad Ikram https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/23360 2026-09-05T08:11:10Z ijimeam:ART driver

ENHANCING HIGH-SPEED PERFORMANCE: MODIFICATION OF BOOM BARRIER GATE WITH PUSH BRAKING SYSTEM FOR ETC APPLICATION Nafis, Muhammad Luthfi Pranoto, Hadi Youlia, Rikko Putra High Speed Barrier Electronic Toll Collection Push Braking System BLDC Motor Congestion at toll roads has become a pervasive issue in contemporary times, predominantly manifesting at toll booths during the payment process. A noteworthy contributor to this congestion has been identified as the sluggish operational speed of boom gates. In response to this challenge, a modification strategy was implemented to enhance the operational efficiency of existing boom gates. The primary modification involved substituting the conventional electric motor with a more advanced Brushless DC (BLDC) motor boasting a power rating of 660 watts. Additionally, an innovative augmentation integrated a motorcycle disk brake system into the boom gate mechanism. Replacing the original electric motor's internal brake system with the disk brake system aimed to optimize the overall performance of the boom gate. The integration of the motorcycle disk brake system was further complemented by incorporating the push braking system (knoken braking system), serving as the actuator instead of the traditional motorcycle lever handle. This strategic substitution was instrumental in activating the disk brake function at the boom gate. During peak rush hours, the modified boom gate underwent rigorous testing at both the Ciawi and Kelapa Gading toll gates. Results from the trial activities unveiled a remarkable improvement in the boom gate's operational speed. Specifically, the opening speed demonstrated an impressive surge of 51 percent, catapulting from 548 ms to 265 ms. Similarly, the closing speed exhibited a commendable enhancement of 44 percent, elevating from 602 ms to 332 ms. Furthermore, the boom gate cycle per hour experienced a notable escalation, increasing by 25 percent from 356 to 449 cars per hour. These findings underscore the efficacy of the implemented modifications in ameliorating congestion issues at toll booths. Universitas Mercu Buana 2024-01-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23360 10.22441/ijimeam.v5i3.23360 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 3 (2023); 88-98 2477-5428 2477-541X 10.22441/ijimeam.v5i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23360/pdf Copyright (c) 2023 Muhammad Luthfi Nafis, Hadi Pranoto, Rikko Putra Youlia https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/23734 2026-09-05T08:07:07Z ijimeam:ART driver

Sustainable Biodiesel Production from Waste Cooking Oil and Crude Palm Oil Using a Custom Mini Pilot Plant Siang, Alan Ooi Lim Leman, Abdul Mutalib Feriyanto, Dafit Abdulmalik, Samir Sani Zakaria, Supaat biodiesel waste cooking oil crude palm oil transesterifica-tion esterification The widespread practice of reusing Waste Cooking Oil (WCO) in hawker food stalls, often for multiple frying cycles, presents a significant public health concern due to the degradation of the oil, which can lead to the formation of toxic compounds. These practices not only pose health risks, such as increasing the potential for cardiovascular diseases and cancer, but also contribute to environmental pollution when the oil is improperly disposed of. This study seeks to address these issues by converting WCO, along with crude palm oil (CPO), into biodiesel using a custom-designed mini pilot plant. The biodiesel production process involved a two-step reaction. The first step, esterification, was conducted using a 55:100 alcohol-to-oil volume ratio with 1% by volume sulfuric acid (H₂SO₄) as the acid catalyst, at 60°C, with a reaction time of 30 minutes and a stirring speed of 800 rpm. The second step, transesterification, utilized a 6:1 alcohol-to-oil molar ratio, with 1 wt.% sodium hydroxide (NaOH) as the alkaline catalyst, carried out at 70°C over the course of one hour. These conditions were carefully selected to optimize the conversion efficiency and to minimize the free fatty acid content, which is crucial for achieving a high yield of biodiesel. The results demonstrated that the mini pilot plant is highly effective in producing biodiesel from both WCO and CPO. The study also led to the development of a standard operating procedure (SOP) for the biodiesel production process, ensuring reproducibility and efficiency. Universitas Mercu Buana 2024-08-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23734 10.22441/ijimeam.v6i1.23734 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 1 (2024); 7-21 2477-5428 2477-541X 10.22441/ijimeam.v6i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23734/pdf Copyright (c) 2024 Alan Ooi Lim Siang, Abdul Mutalib bin Leman, Dafit Feriyanto, Supaat Zakaria https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/23743 2026-09-05T08:12:03Z ijimeam:ART driver

GREEN TECHNOLOGY FOR SUSTAINABLE AGRICULTURE: BIO-FERTILIZER PRODUCTION FROM MUNICIPAL WASTE TO PRESERVE THE ENVIRONMENT Sidik, Muhamad Afifi Muhamad Leman, Abdul Mutalib Feriyanto, Dafit Abdulmalik, Samir Sani Zakaria, Supaat Municipal Waste Biodegradable Bio-fertilizer Green technology Plant growth This study addresses the pressing issue of municipal waste (MW) management by proposing an innovative approach to transform residential solid waste into a valuable resource using green technology. MW, sourced from diverse sectors, undergoes various disposal methods, including incineration, recycling, and landfilling. In Malaysia, the composition of MW aligns with global trends, with food waste and plastic being the predominant categories. This research focuses on producing fertilizer from residential solid waste through a green technology process, utilizing a sequential procedure involving high pressure, high temperature, and energized water to de-polymerize hemicellulose and lignin, followed by microbial enzymatic fermentation. The developed green technology introduces a novel apparatus designed for treating MW in a high-temperature, low-pressure rotating vessel using indirect heating with thermal fluid. The experimental protocol involves four batches of MW samples, evaluating the mass differential before and after the treatment process. Furthermore, a 7-week observation period assesses chili plant growth as an indicator of fertilizer effectiveness. Results indicate a significant 71% mass reduction of MW, amounting to 201.26 kg, emphasizing the efficacy of the developed process. The investigation extends to plant height, comparing MW-derived fertilizer with commercial fertilizer over a 5-week period. Remarkably, chili plants fertilized with MW-derived fertilizer exhibit a greater height of 8.6 cm, surpassing the 7.3 cm observed with commercial fertilizer. This study concludes that MW-derived fertilizer is highly recommended for enhancing plant growth and health in Malaysia, suggesting a sustainable production system. The research not only contributes to waste management but also aligns with broader goals of promoting environmentally conscious and sustainable agricultural practices, emphasizing the potential of green technology in addressing the challenges of municipal waste. Universitas Mercu Buana 2024-01-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23743 10.22441/ijimeam.v5i3.23743 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 3 (2023); 118-124 2477-5428 2477-541X 10.22441/ijimeam.v5i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23743/pdf Copyright (c) 2024 Muhamad Afifi Muhamad Sidik, Abdul Mutalib Leman, Dafit Feriyanto, Samir Sani Abdulmalik, Supaat Zakaria https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/23744 2026-09-05T08:00:35Z ijimeam:ART driver

Condensate Water Processing of Split-Unit Air Conditioning System on Commercial Building Nasution, Henry Aubaidellah, Nurul Hanim condensate water recovery split-unit air conditioning water conservation sustainability water quality analysis This research investigates the feasibility and potential for water recovery from condensate produced by a split-unit air conditioning (AC) system in a commercial building, focusing on Scholar’s Inn UTM (SIUTM) in Johor, Malaysia. The study involves the collection and measurement of condensate water from 243 AC units under various operational conditions. The results indicate that the building can produce up to 4,781 liters of condensate per day, amounting to an annual total of approximately 1,721,160 liters. This significant volume highlights the potential for utilizing condensate as an alternative water source, especially in regions with similar hot and humid climates. Water quality analysis was conducted to evaluate the suitability of the condensate for various applications. The condensate water exhibited a pH of 7.17, Total Dissolved Solids (TDS) of 1.0 mg/L, and a copper (Cu) concentration of 1.1 mg/L. While these parameters indicate that the water is within acceptable ranges for non-potable uses, such as irrigation or cooling tower makeup water, the copper concentration slightly exceeds the standard for potable water, necessitating treatment such as reverse osmosis before consumption. The study’s findings underscore the environmental and economic benefits of condensate recovery, offering a sustainable solution to water scarcity issues in commercial buildings. By integrating condensate recovery systems, facilities can reduce their reliance on traditional water sources, contributing to broader water conservation efforts. Future research should explore the long-term viability and scalability of such systems in various building types and climates. Universitas Mercu Buana 2024-09-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23744 10.22441/ijimeam.v6i2.23744 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 2 (2024); 101-106 2477-5428 2477-541X 10.22441/ijimeam.v6i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23744/pdf Copyright (c) 2024 Henry Nasution, Nurul Hanim Aubaidellah https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/23781 2026-09-05T08:08:32Z ijimeam:ART driver

Comparative Analysis of Cooling Load Calculations: CLTD Method vs. Carrier HAP 5.01 Software for Hotel HVAC Design Prawibowo, Madarif Komarudin, Komarudin cooling load CLTD Carrier HAP 5.01 HVAC design hotel energy efficiency thermal load calculation This study examines the cooling load requirements of a hotel building by comparing two methodologies: the traditional Cooling Load Temperature Difference (CLTD) method and the Carrier Hourly Analysis Program (HAP) 5.01 software. The primary objective is to validate the accuracy and reliability of these methods in calculating cooling loads across different room types, from standard rooms to larger, more complex suites. The results show that the CLTD method consistently yields higher cooling load estimates, with discrepancies ranging from 3% to 14% compared to HAP 5.01 calculations. These differences are most significant in larger rooms, such as suites and owner’s suites, which have more extensive glass areas, higher occupancy, and more heat-generating equipment. The findings indicate that while the CLTD method is valuable for quick, preliminary estimates, the HAP 5.01 software provides a more precise and comprehensive analysis, taking into account hourly variations, equipment schedules, and other factors that impact cooling loads. This research highlights the need for careful selection of the appropriate calculation method to ensure the efficient design of HVAC systems, maximizing energy efficiency, and maintaining occupant comfort. The study concludes that for projects requiring high accuracy, particularly in complex or large spaces, dynamic simulation tools like HAP 5.01 are preferable. Detailed cooling load results and comparisons are provided in the supplementary documentation, offering further insights into the analysis and its implications for HVAC design. Universitas Mercu Buana 2024-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23781 10.22441/ijimeam.v6i1.23781 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 1 (2024); 46-56 2477-5428 2477-541X 10.22441/ijimeam.v6i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23781/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23781/pdf_suplementary_document Copyright (c) 2024 Madarif Prawibowo, Komarudin https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/23945 2026-09-05T08:06:22Z ijimeam:ART driver

Effect of Pouring Temperature Variation on Cooling Rate, Hardness and Microstructure of Al-Zn in Aircraft Structures Pambekti, Arif Prakoso, Agung Dinaryanto, Okto Rahmandhika, Andinusa Yaqin, Rizqi Ilmal Al-Zn alloy temperature varia-tion cooling rate hardness microstructure Al-Zn alloys are widely utilized in industries such as automotive, aircraft manufacturing, and advanced military equipment due to their exceptional strength-to-weight ratio. Among various fabrication methods, metal casting is a commonly used technique for producing structural components from these alloys. However, a significant challenge with metal casting is the reduction in mechanical properties compared to the base material before melting. This reduction highlights the need for research to identify the optimal casting conditions, particularly the casting temperature, which plays a crucial role in maintaining and potentially enhancing the material's mechanical properties. Aluminum alloy 7075, known for its high strength, was selected for investigation. According to the Al-Zn phase diagram, the melting point of aluminum alloy 7075, based on the weight percentage specified by the Standard Aluminum Association, is approximately 660°C. Experiments were conducted by varying the pouring temperature during casting in 30°C increments above this melting point. Specifically, the alloy was melted and cast at three different temperatures: 690°C, 720°C, and 750°C. The mold temperature was consistently maintained at 220°C to isolate the effects of the pouring temperature. Results indicate that increasing the casting temperature significantly affects the alloy's microstructure and mechanical properties. As the casting temperature increases, the cooling rate decreases, leading to a finer grain structure. This finer grain size directly contributes to an increase in hardness, suggesting that higher casting temperatures can enhance the mechanical properties of Al-Zn alloys. These findings emphasize the importance of precise control over casting temperatures to optimize the performance characteristics of aluminum alloy 7075 in high-strength applications. Universitas Mercu Buana 2024-08-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23945 10.22441/ijimeam.v6i1.23945 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 1 (2024); 1-6 2477-5428 2477-541X 10.22441/ijimeam.v6i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/23945/pdf Copyright (c) 2024 Arif Pambekti, Agung Prakoso, Okto Dinaryanto, Andinusa Rahmandhika, Rizqi Ilmal Yaqin https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/24030 2026-09-05T08:11:44Z ijimeam:ART driver

BIOPOLYMER-BASED FILM PREPARATION FOR POTENTIAL SMART FOOD PACKAGING MATERIAL APLLICATION Barleany, Dhena Ria Sari, D K Lestari, R S Raharja, Y Gunawan, A Chitosan Fish Food Packaging Smart Public interest in colorimetric films for food freshness monitoring has increased recently. In addition to extending the shelf life of packaged food products, packaging materials are also required to provide current information about the freshness of the food while ensuring food quality and safety. The current work aims to prepare smart biodegradable films based on biopolymer-containing color indicators to monitor the quality of Decapterus spp. The pH-sensing colorimetric film was developed from a chitosan biopolymer modified using polyvinyl alcohol (PVA) and glycerol, as well as methyl red, as an indicator of fish freshness. The effect of using PVA and stirring conditions (temperature and time) on film production was evaluated on its physical appearance, water vapor permeability, and mechanical properties. The results show that the use of PVA can increase the transparency of chitosan films. Incorporating PVA into the film results in brighter and clearer colors compared to films without PVA. The temperature used in the preparation of the film solution has an influence on the mechanical properties and the water vapor permeability. The increasing stirring temperature leads to the enhancement of Young's modulus and the barrier properties against water vapor and moisture, still concurrently impacting a decrease in the film's yield strength and strain. Additionally, the film also exhibits responsiveness to pH during fish spoilage, with a color change that occurs from pink to yellowish. This confirms that the pH-responsive film resulting from this research has great potential to be applied as a real-time indicator of fish freshness during storage. Universitas Mercu Buana 2024-01-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/24030 10.22441/ijimeam.v5i3.24030 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 3 (2023); 109-117 2477-5428 2477-541X 10.22441/ijimeam.v5i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/24030/pdf Copyright (c) 2024 Dhena Ria Barleany, D K Sari, R S. D. Lestari, Y Raharja, A. Gunawan https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/24794 2026-09-05T08:11:28Z ijimeam:ART driver

COMPARING ROTATION-ROBUST MECHANISMS IN LOCAL FEATURE MATCHING: HAND-CRAFTED VS. DEEP LEARNING ALGORITHMS Rahman, Aulia Lie, Louis Gautama Wahyudi, Haris Heltha, Fahri local feature matching deep learning rotation robust feature matching CNN The objective of this research is to conduct a performance comparison between hand-crafted feature matching algorithms and deep learning-based counterparts in the context of rotational variances. Hand-crafted algorithms underwent testing utilizing FLANN (Fast Library for Approximate Nearest Neighbors) as the matcher and RANSAC (Random sample consensus) for outlier detection and elimination, contributing to enhanced accuracy in the results. Surprisingly, experiments revealed that hand-crafted algorithms could yield comparable or superior results to deep learning-based algorithms when exposed to rotational variances. Notably, the application of horizontally flipped images showcased a distinct advantage for deep learning-based algorithms, demonstrating significantly improved results compared to their hand-crafted counterparts. While deep learning-based algorithms exhibit technological advancements, the study found that hand-crafted algorithms like AKAZE and AKAZE-SIFT could effectively compete with their deep learning counterparts, particularly in scenarios involving rotational variances. However, the same level of competitiveness was not observed in horizontally flipped cases, where hand-crafted algorithms exhibited suboptimal results. Conversely, deep learning algorithms such as DELF demonstrated superior results and accuracy in horizontally flipped scenarios. The research underscores that the choice between hand-crafted and deep learning-based algorithms depends on the specific use case. Hand-crafted algorithms exhibit competitiveness, especially in addressing rotational variances, while deep learning-based algorithms, exemplified by DELF, excel in scenarios involving horizontally flipped images, showcasing the unique advantages each approach holds in different contexts. Universitas Mercu Buana 2024-01-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/24794 10.22441/ijimeam.v5i3.24794 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 3 (2023); 99-108 2477-5428 2477-541X 10.22441/ijimeam.v5i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/24794/pdf Copyright (c) 2024 Aulia Rahman, Louis Gautama Lie, Haris Wahyudi, Fahri Heltha https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/25002 2024-01-21T03:02:26Z ijimeam:ED driver

Message from Editor in Chief Sebayang, Darwin Universitas Mercu Buana 2023-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/25002 10.22441/ijimeam.v5i3.25002 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 5 No. 3 (2023) 2477-5428 2477-541X 10.22441/ijimeam.v5i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/25002/pdf Copyright (c) 2023 Darwin Sebayang

oai:ojs.pkp.sfu.ca:article/25014 2026-09-05T07:59:55Z ijimeam:ART driver

Impact of Extended Intervals on Diesel Engine Performance with 15W-40 DH1 Lubricant Oil Suprihatiningsih, Wiwit Priyanto, Arief Nurato, Nurato Chairat, Arief Suardi Nur Prumanto, Denny engine lubricant oil lubricant replacement interval 15W-40 Diesel engine FTIR total base number Engine lubricant oil is crucial for minimizing friction between moving components within an engine, directly influencing the engine's reliability and lifespan. Determining the appropriate oil replacement intervals is essential, as extending these intervals necessitates more rigorous monitoring of both oil quality and engine condition. This study investigated the performance of SAKAI 15W-40 DH1 engine oil in the SAKAI Vibrating Roller SV526 over varying operational periods: 125 hours, 250 hours, 375 hours, and 500 hours. The research involved analyzing oil samples for viscosity, metal additives, total base number (TBN), and contaminants using Fourier Transform Infrared Spectroscopy (FTIR). Additionally, key engine performance indicators, including fuel consumption, valve clearance, and compression pressure, were measured. The findings revealed a gradual decrease in oil viscosity from 13.48 cSt to 11.56 cSt, approaching the minimum acceptable threshold of 11.45 cSt. Concurrently, the Fe content in the oil increased to 11 ppm, indicating wear, while the valve clearance in cylinder number three expanded to 0.48 mm, and compression pressure dropped from 31 kg/cm² to 28 kg/cm². Despite these changes, the oil remained within the standard operational limits, and the engine continued to perform adequately. However, based on the observed trends, extending the oil replacement interval to 500 hours cannot be conclusively recommended, as the oil's condition and engine performance may begin to decline beyond this point. Universitas Mercu Buana 2024-09-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/25014 10.22441/ijimeam.v6i2.25014 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 2 (2024); 85-91 2477-5428 2477-541X 10.22441/ijimeam.v6i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/25014/pdf Copyright (c) 2024 Arief Priyanto, Wiwit Suprihatiningsih, Nurato Nurato, Arief Suardi Nur Chairat, Denny Prumanto https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/25351 2026-09-05T07:56:33Z ijimeam:ART driver

Study of Eigenvalues and Matrix Eigenvectors Using MATLAB: Vibration Systems of Multi-Purpose Vehicle (MPV) Octaviani, Ana Nur Khaerudini, Deni Shidqi Feriyanto, Dafit Timuda, Gerald Ensang Darsono, Nono Chollacoop, Nuwong eigenvalue eigenvector vibrat-ing system MATLAB Vehicle vibration is a critical factor influencing both passenger comfort and vehicle performance. In this study, we analyze the multi-degree-of-freedom (MDOF) vibrational behavior of a multi-purpose vehicle (MPV) using matrix eigenvalue and eigenvector methods. The vehicle’s dynamics are modeled by developing a set of equations of motion that account for the forces acting on the front and rear tires, car body, and pitch angle. MATLAB is utilized to numerically compute the system’s eigenvalues and eigenvectors, representing the natural frequencies and vibration modes of the vehicle, respectively. The analysis focuses on the vehicle’s response to a 50 mm displacement at the front tire, simulating the effect of road disturbances. The resulting vibrations in the front and rear tires, car body, and vehicle pitch are illustrated over a 1-second time frame. The findings show that the front tire experiences the largest oscillation amplitude of ±1 mm, while the rear tire exhibits a much smaller displacement of ±0.04 mm. The overall car body displacement reaches a maximum amplitude of ±1.3 mm, indicating partial damping of the front tire vibrations. However, the results reveal that the vehicle’s suspension system lacks effective damping, as the vibrations do not decrease over time. This behavior could negatively impact ride comfort and safety, particularly on uneven roads. The study concludes that improvements to the vehicle’s suspension system are necessary to enhance damping performance. The presented MATLAB-based approach offers a valuable tool for analyzing and optimizing vehicle vibration systems. Universitas Mercu Buana 2024-10-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/25351 10.22441/ijimeam.v6i3.25351 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 3 (2024); 136-143 2477-5428 2477-541X 10.22441/ijimeam.v6i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/25351/pdf Copyright (c) 2024 Ana Nur Octaviani, Deni Shidqi Khaerudini, Dafit Feriyanto, Gerald Ensang Timuda, Nono Darsono, Nuwong Chollacoop https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/25355 2026-09-05T07:53:03Z ijimeam:ART driver

Mechanical Properties Analysis of Stainless Steel 304 Linear Guide Rail Using Autodesk Inventor and MATLAB Azizi, Muhammad Kurniawan, Kurniawan Khaerudini, Deni Shidqi Timuda, Gerald Ensang Darsono, Nono Chollacoop, Nuwong Linear guide rail Finite Element Analysis (FEA) stainless steel 304 stress-strain relationship MATLAB regression model This study investigates the mechanical properties of a stainless steel 304 linear guide rail using a combination of Autodesk Inventor and MATLAB. The primary objective is to analyze the von Mises stress distribution, displacement, and safety factor of the linear guide rail under varying load conditions, as well as to develop a model representing the relationship between stress and strain. A detailed 3D model of the guide rail was created using Autodesk Inventor, followed by finite element analysis (FEA) to evaluate stress and strain distribution across different sections of the rail. The simulation was conducted to assess the structural response under multiple loading scenarios, ensuring its reliability for real-world applications. Furthermore, a linear regression analysis was performed using MATLAB to establish a predictive model correlating stress and strain, enabling more accurate forecasting of the material's mechanical behavior. The results revealed that the maximum von Mises stress obtained from the simulation was 23.595 MPa, with a corresponding maximum displacement of 0.397 mm. The safety factor analysis confirmed the rail's structural integrity, with a minimum safety factor of 10.595, well above the failure threshold. These findings indicate that the linear guide rail meets the necessary mechanical performance requirements for its intended application. Universitas Mercu Buana 2025-03-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/25355 10.22441/ijimeam.v7i1.25355 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 7 No. 1 (2025); 10-19 2477-5428 2477-541X 10.22441/ijimeam.v7i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/25355/pdf Copyright (c) 2025 M. Azizi, Kurniawan, D. S. Khaerudini, G. E. Timuda, N. Darsono, and N. Chollacoop https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/25356 2026-09-05T07:59:32Z ijimeam:ART driver

Heat Distribution Simulation in a Square Aluminum 7075 Plate Using Laplace Equation and MATLAB Pudjiwati, Sri Sudarma, Andi Firdaus Tarigan, Kontan Khaerudini, Deni Shidqi Djajadiwinata, Eldwin partial differential equation Laplace equation heat distribu-tion MATLAB Liebmann method The efficient management of heat transfer from aircraft engines to the wings is vital for maintaining thermal efficiency and structural integrity in modern aircraft design. Excessive heating of the wings, caused by engine-generated heat, can negatively impact aerodynamic performance and safety. This study focuses on analyzing heat distribution in a square aluminum 7075 plate to better understand heat transfer mechanisms. Using the Laplace equation, implemented through MATLAB (2023 Online Version), we aim to simulate and analyze heat distribution on the plate. The numerical method employed in this research involves solving the Laplace equation with Neumann boundary conditions, which represent insulated edges. The Liebmann method is used to iteratively reduce error to less than 1%. Simulations are conducted on an aluminum 7075 plate of dimensions 4x10⁻² m x 4x10⁻² m under various temperature conditions at the edges. Numerical results show that at the 9th iteration, the error reaches 0.71%, while MATLAB simulations yield an error of 0.4681% at the same iteration. The heat distribution across the plate is clearly visualized, and the analysis indicates that increasing the number of grids improves both the clarity and accuracy of the simulation results. In conclusion, this study demonstrates that applying the Laplace equation via MATLAB is an effective approach for analyzing heat distribution in aluminum 7075 plates. The results show that a finer grid resolution enhances accuracy, with a 101-grid system providing particularly clear and precise heat distribution patterns. These findings contribute to the optimization of thermal system designs, especially in aviation-related applications. Universitas Mercu Buana 2024-09-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/25356 10.22441/ijimeam.v6i2.25356 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 2 (2024); 78-84 2477-5428 2477-541X 10.22441/ijimeam.v6i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/25356/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/25356/pdf_suplementary_doc Copyright (c) 2024 Sri Pudjiwati, Andi Firdaus Sudarma, Kontan Tarigan, Deni Shidqi Khaerudini, Eldwin Djajadiwinata https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/26135 2026-09-05T08:00:57Z ijimeam:ART driver

Ride Test on Vehicles Travelling Over Speed Bumps: Simulation with CarSim Software Lenahatu, Adetia Yamin, Mohamad CarSim simulation speed bumps vehicle response suspension characteristics road comfort This study explores the effects of different speed bump geometries—flat-topped, sinusoidal, and parabolic—on vehicle dynamics and ride comfort using CarSim simulations. The analysis focuses on key parameters such as vertical forces on the suspension, vertical acceleration, and the wheel surface adhesion index. The results show that flat-topped bumps generate the highest vertical forces, reaching peaks of up to 6,000 N on the front suspension, leading to increased discomfort. Sinusoidal bumps, in contrast, generate smoother transitions, with vertical forces peaking at approximately 3,500 N, improving ride comfort. At vehicle speeds of 30 km/h, the vertical forces on the suspension increase significantly, with flat-topped bumps reducing the wheel surface adhesion index to as low as 0.6, indicating a higher risk of wheel slip and compromised vehicle stability. In contrast, sinusoidal bumps maintain a more favorable adhesion index of 0.85 at similar speeds. These reductions in adhesion elevate the risk of loss of control, especially at higher speeds. The findings suggest that adaptive suspension systems, capable of adjusting damping and stiffness based on the bump geometry and vehicle speed, would enhance ride quality and stability. Additionally, smoother bump designs, such as sinusoidal profiles, are recommended to reduce the impact on vehicle dynamics, particularly in urban environments. These insights contribute to improving both vehicle design and road safety, ensuring safer and more comfortable driving experiences. Universitas Mercu Buana 2024-09-23 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/26135 10.22441/ijimeam.v6i2.26135 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 2 (2024); 107-118 2477-5428 2477-541X 10.22441/ijimeam.v6i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/26135/pdf Copyright (c) 2024 Adetia Lenahatu, Mohamad Yamin https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/27450 2026-09-05T08:00:18Z ijimeam:ART driver

Performance Evaluation of a Condenser at a Combined Cycle Power Plant Using the LMTD Method Swardhamana, Putut Jaya Ruhyat, Nanang Novianto, Sentot condenser performance heat transfer rate LMTD combined cycle power plant scheduled maintenance This study evaluates the performance of the condenser at the Cilegon Combined Cycle Power Plant (CCPP) using the Logarithmic Mean Temperature Difference (LMTD) method to measure the heat transfer rate. Routine maintenance carried out on the condenser in the form of cleaning the condenser water box and condenser tube from garbage and crust on the condenser tube wall. Currently, condenser maintenance follows a routine schedule that is tied to steam turbine maintenance, without taking actual condenser performance into account. This can lead to inefficiencies and unnecessary downtime. The goal of this research is to assess the heat transfer rate of the condenser before and after maintenance to judge its effectiveness. Data on temperature changes were gathered in June 2023, before maintenance, and again in July 2023, after an overhaul. The analysis shows that the heat transfer rate increased from 51,362,294.48 kcal/h to 127,246,219.7 kcal/h, while the LMTD value rose from 0.76°C to 1.86°C. Based on these results, the study suggests a new approach to maintenance that focuses on performance. Specifically, maintenance should be done when the heat transfer rate drops below 110,000,000 kcal/h. This approach will help ensure the condenser works at its best, improve the plant's overall efficiency, and prevent the need for unnecessary maintenance. By aligning maintenance with performance data, the plant can boost output while lowering costs and downtime. Universitas Mercu Buana 2024-09-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/27450 10.22441/ijimeam.v6i2.27450 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 2 (2024); 92-100 2477-5428 2477-541X 10.22441/ijimeam.v6i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/27450/pdf Copyright (c) 2024 Putut Jaya Swardhamana, Nanang Ruhyat, Sentot Novianto https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/27476 2026-09-05T07:57:31Z ijimeam:ART driver

Performance Evaluation of Ammonia Refrigeration Systems in a Texturizing Plant Cholik, Abdul Ruhyat, Nanang Novianto, Sentot ammonia refrigeration system texturizing plant cooling compressor work efficiency condenser performance coefficient of performance This study evaluates the performance of an ammonia refrigeration system used as a cooling medium in a texturizing plant. The analysis was conducted over a 10-day period, focusing on key performance indicators such as compressor work, condenser exhaust heat, refrigeration effect, mass flow rate, Coefficient of Performance (COP), and overall system efficiency. The data revealed that the system performed optimally on Day 5, achieving a peak efficiency of 91%, with compressor work at 304.1 kJ/kg and condenser exhaust heat at 1414.6 kJ/kg. In contrast, the lowest efficiency was recorded on Day 3, at 77%. The refrigeration effect reached its highest value of 491.3 kJ/kg on Day 3, highlighting efficient heat absorption despite lower overall system efficiency. On Day 4, the mass flow rate was 0.001049929 kg/s, with an actual COP of 1.39, while the ideal COP peaked on Day 10 at 1.69, reflecting the system’s theoretical maximum efficiency under optimal conditions. The study emphasizes the critical role of the condenser in the system’s performance. Optimizing the condenser’s operation by controlling temperature, pressure, and flow rates, alongside regular maintenance, significantly impacts system efficiency. The findings suggest that careful monitoring of operational parameters, including compressor work and refrigerant flow, can enhance the overall efficiency and reliability of ammonia refrigeration systems in industrial settings. This research provides practical insights into improving the cooling performance, reducing energy consumption, and ensuring consistent production quality in texturizing plants. Universitas Mercu Buana 2024-10-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/27476 10.22441/ijimeam.v6i3.27476 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 3 (2024); 161-172 2477-5428 2477-541X 10.22441/ijimeam.v6i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/27476/pdf Copyright (c) 2024 Abdul Cholik, Nanang Ruhyat, Sentot Novianto https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/27652 2026-09-05T08:07:40Z ijimeam:ART driver

Design and Analysis of a Vertical Axis Ocean Current Turbine Tunnel Using SolidWorks Computational Fluid Dynamics Gunawan, Hardi Ruhyat, Nanang Novianto, Sentot vertical-axis ocean current turbine renewable energy tun-nel construction CFD laminar flow The development of renewable energy in the marine power generation sector presents a promising approach to producing electrical energy in a sustainable and environmentally friendly manner. Indonesia, with its vast oceanic territory, holds significant potential for harnessing marine energy. However, the relatively slow speed of ocean currents in the region, typically ranging from 0.1 m/s to 1.5 m/s, poses a challenge to the efficiency of marine power generation. To overcome this limitation, this research focuses on the design and analysis of a vertical-axis ocean current turbine tunnel aimed at increasing the speed of ocean currents, thereby enhancing the overall efficiency of energy production. The study combines a thorough literature review with experimental research methods, utilizing SolidWorks Computational Fluid Dynamics (CFD) software to simulate the tunnel's impact on ocean current velocity. The simulations reveal that the tunnel construction significantly boosts current speeds, increasing them from 1.0 m/s to 1.7 m/s, and from 1.5 m/s to 2.6 m/s. This increase in velocity directly translates to higher kinetic energy available for conversion into electrical power by the turbine. Moreover, the study shows that the tunnel construction contributes to a more uniform flow of ocean currents, as evidenced by the Reynolds numbers obtained—100.250 at a current speed of 1.0 m/s and 150.375 at 1.5 m/s. These values, being below 2000, indicate laminar flow conditions within the tunnel, which are beneficial for optimizing turbine performance by reducing turbulence and ensuring a stable energy output. The findings underscore the effectiveness of the tunnel design in improving the efficiency of vertical-axis ocean current turbines, making it a viable solution for enhancing renewable energy production in regions with low ocean current speeds. Universitas Mercu Buana 2024-08-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/27652 10.22441/ijimeam.v6i1.27652 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 1 (2024); 38-45 2477-5428 2477-541X 10.22441/ijimeam.v6i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/27652/pdf Copyright (c) 2024 Hardi Gunawan, Nanang Ruhyat https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/28136 2026-09-05T07:52:41Z ijimeam:ART driver

Statistical Approach in Analyzing Fuel Efficiency of Diesel SUVs in Indonesia Using MATLAB Ginting, Canda Lesmana Lase, Asaeli Tongoni Adnan, Farrah Anis Fazliatul Rhee, Jong Soo Ginting, Dianta diesel SUV engine capacity vehicle weight engine torque MATLAB linear regression The scarcity of fossil fuels and the rising environmental concerns make improving fuel efficiency in the automotive sector a critical focus. Diesel Sport Utility Vehicles (SUVs) in Indonesia, known for their high fuel consumption, significantly contribute to these challenges. This research ad-dresses the problem by investigating the factors influencing fuel efficiency in diesel SUVs availa-ble in the 2024 Indonesian market. The primary objective is to analyze the impact of engine torque, vehicle weight, and engine capacity on fuel consumption. To achieve this, we employed MATLAB as a tool for statistical analysis, using specific algorithms such as linear regression, box plot, and correlation methods to model and evaluate the data. The study found that vehicle weight and engine capacity show a strong positive correlation with fuel consumption, indicating that larger engines and heavier vehicles consume more fuel. In contrast, engine torque was found to have a weaker correlation, suggesting that factors like aerodynamics and transmission efficiency may play a more significant role. These results provide valuable insights for manufacturers in de-signing more fuel-efficient SUVs and for consumers making informed purchasing decisions. Ulti-mately, this research contributes to the development of more sustainable transportation solu-tions by highlighting the importance of optimizing vehicle design and engine specifications to re-duce fuel consumption in the near term. Universitas Mercu Buana 2024-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/28136 10.22441/ijimeam.v7i1.28136 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 7 No. 1 (2025); 1-9 2477-5428 2477-541X 10.22441/ijimeam.v7i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/28136/pdf Copyright (c) 2024 Canda Lesmana Ginting, Asaeli Tongoni Lase, Farrah Anis Fazliatul Adnan, Jong Soo Rhee, Dianta Ginting https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/28137 2026-09-05T07:56:01Z ijimeam:ART driver

Statistical Analysis Engine Capacity, Weight, and Torque on MPV Fuel Consumption Using Regression and Correlation Algorithms Salafuddin, Hafidz Pradipta, Nanang K Adnan, Farrah Anis Fazliatul Rhee, Jong Soo Ginting, Dianta multi-purpose vehicle (MPV) fuel consumption engine capacity regression correlation The rapid increase in production and usage of Multi-Purpose Vehicles (MPVs) in Indonesia has led to heightened concerns over fuel consumption, environmental pollution, and economic sustainability. This study investigates the relationship between engine capacity, vehicle weight, engine torque, and fuel consumption in MPVs, aiming to provide a better understanding of how these variables influence fuel efficiency. Data from 1500 cc MPV models produced between 2023 and 2024 were collected, including technical specifications such as engine capacity, weight, torque, and reported fuel consumption. Using MATLAB, linear regression and Pearson correlation analysis were employed to analyze these relationships. The results reveal that vehicle weight has the most significant impact on fuel efficiency, exhibiting a strong negative correlation of -0.69, meaning that heavier vehicles tend to consume more fuel. Engine capacity showed a moderate negative correlation of -0.28, while engine torque had a weak correlation of -0.11, indicating that torque plays a less critical role in determining fuel consumption under normal driving conditions. The regression analysis further confirmed that vehicle weight is the most influential factor, with reductions in weight providing the greatest potential for improving fuel efficiency. These findings have important implications for both manufacturers and consumers. Automotive manufacturers are encouraged to prioritize the use of lightweight materials and advanced engineering designs to enhance fuel efficiency. Additionally, consumers can use this information to make informed decisions when selecting MPVs, focusing on models with optimized weight to reduce fuel consumption. Overall, this study contributes to ongoing efforts to develop more sustainable and fuel-efficient vehicles in the automotive industry. Universitas Mercu Buana 2024-10-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/28137 10.22441/ijimeam.v6i3.28137 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 3 (2024); 119-128 2477-5428 2477-541X 10.22441/ijimeam.v6i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/28137/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/28137/pdf_sup_doc Copyright (c) 2024 Hafidz Salafuddin, Nanang K Pradipta, Farrah Anis Fazliatul Adnan, Jong Soo Rhee, Dianta Ginting https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/28235 2026-09-05T07:59:10Z ijimeam:ART driver

Heat Mapping and Plastic Strain Radius Modeling of Dual-Tool Friction Stir Welds 6061 Aluminum Alloy Plate Using FEM Youlia, Rikko Putra Utami, Diah Romahadi, Dedik Yishuang, Tang double-sided friction stir welding aluminum alloy 6061 finite element method nodal temperature equivalent plastic strain This study investigates the effects of Dual-Tool Friction Stir Welding (DT-FSW) parameters on the weld quality of 8 mm thick 6061 aluminum alloy plates, specifically focusing on the elimination or minimization of the "pass-overlap zone" that’s a gap typically observed at the mid-section of the weld cross-section resembling characteristics of the Heat-Affected Zone (HAZ). To address ongoing debates regarding the optimal joint performance concerning this overlap, symmetric increases in the dimensions of both FSW tools were implemented to analyze resultant temperature fields and plastic strain adaptations at the weld interfaces. Simulation visualizations were conducted with tool density variations at intervals of 0.2 mm and 0.4 mm. Results indicate that increasing tool density, thereby reducing the distance between tool surfaces, leads to a decrease in peak temperatures generated during welding. This reduction in temperature correlates with a more uniform distribution of plastic strain rates across all layers of the material—upper, middle, and lower—with the leading edge exhibiting the most significant improvement in strain uniformity. Conversely, during the stabilization phase, a decrease in tool density (S) results in a reduction of the maximum equivalent plastic strain rate. These findings suggest that careful adjustment of tool density in DT-FSW processes can enhance weld quality by promoting more uniform mechanical and thermal properties across the joint. Universitas Mercu Buana 2024-09-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/28235 10.22441/ijimeam.v6i2.28235 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 2 (2024); 67-77 2477-5428 2477-541X 10.22441/ijimeam.v6i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/28235/pdf Copyright (c) 2024 Rikko Putra Youlia, Diah Utami, Dedik Romahadi, Tang Yishuang https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/28891 2026-09-05T07:57:11Z ijimeam:ART driver

Optimization of Titanium Recovery from Tin Tailings Using Flotation Route Subandrio, Subandrio Dahani, Wiwik Sundari, Rita Kurniawati, Riskaviana Marwanza, Irfan Darren, Franko Sajow tin tailing flotation route sodium chlorate sodium oleate titanium recovery Titanium has found widespread application across various industries due to its high corrosion resistance. It is commonly used in dental equipment, surgical instruments, bone implants, and marine components, and serves as an engine material in high-temperature environments. Because of its lighter weight compared to steel, titanium has also replaced stainless steel in many construction materials. In Bangka Island, Indonesia, tin tailings have been identified as a potential source of titanium, making the analysis of titanium in these tailings highly significant. This study employed the froth flotation method, known for its simplicity, speed, and cost-effectiveness, to analyze titanium content from tin tailings. Sodium oleate was used as the frother and collector, while sodium chlorate acted as the depressant. The mass ratios of depressant to collector were varied at fixed collector amounts (1:10, 5:10, 10:10, and 15:10) and fixed depressant amounts (10:3, 10:6, 10:9, and 10:12). The highest titanium concentration (2.03%) was achieved with a mass ratio of 10:12, while the optimal titanium recovery (45.51%) in the concentrate occurred with equal amounts (3.75 g) of depressant and collector, or at a mass ratio of 10:10, at 15 minutes of flotation time and neutral pH. X-ray fluorescence (XRF) and X-ray diffraction (XRD) analyses indicated that the tin tailings primarily contained silicate and zircon minerals, with traces of titanium in the form of rutile, ilmenite, and titanate. These findings contribute valuable insights for future titanium extraction and processing industries. Universitas Mercu Buana 2024-10-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/28891 10.22441/ijimeam.v6i3.28891 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 3 (2024); 152-160 2477-5428 2477-541X 10.22441/ijimeam.v6i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/28891/pdf Copyright (c) 2024 Subandrio Subandrio, Wiwik Dahani, Rita Sundari, Riskaviana Kurniawati, Irfan Marwanza, Franko Sajow Darren https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/29151 2026-09-05T07:56:16Z ijimeam:ART driver

Enhancing Inventory Accuracy through Stock-Taking in Production Monitoring Systems for Workstations Febriansyah, Muhammad Zulfahmi Raharno, Sri Setyawan, Harry Prayoga CPS CVWS data models stock-taking production system Industry 4.0 promotes the use of Cyber-Physical Systems (CPS) to improve production efficiency through seamless data exchange between virtual and physical components. However, in manual labor-driven environments, discrepancies between virtual stock data and actual material usage can create challenges for accurate production monitoring. This study focuses on addressing these discrepancies by integrating a stock-taking method into a production monitoring system. The system was implemented in an air conditioning train car assembly workshop, where differences of 2–3% between the predicted virtual stock and real-world quantities were identified. By applying the stock-taking method, virtual data were recalibrated to reflect real-time stock levels more accurately. The system's ability to track material usage and losses allowed for significant improvements in inventory accuracy, with immediate updates provided to the CPS. This approach minimizes human error in manual operations, ensuring that material predictions are more aligned with actual consumption. The results show that the implementation of the stock-taking method reduced the margin of error in stock predictions, improving overall production decision-making. These findings suggest that this method can enhance stock accuracy in manufacturing sectors, particularly in developing countries where manual labor is predominant. This study provides practical implications for optimizing material management and reducing production costs by leveraging CPS integration with stock-taking methods. Universitas Mercu Buana 2024-10-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/29151 10.22441/ijimeam.v6i3.29151 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 6 No. 3 (2024); 129-135 2477-5428 2477-541X 10.22441/ijimeam.v6i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/29151/pdf Copyright (c) 2024 Muhammad Zulfahmi Febriansyah, Sri Raharno, Harry Prayoga Setyawan https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/30324 2026-09-05T07:54:18Z ijimeam:ART driver

Performance Analysis of Centrifugal Pumps Before and After Wear Ring Restoration Rifai, Moh Sahal Ruhyat, Nanang Surachman, Arief Centrifugal pump wear ring clearance pump efficiency hydraulic performance reliability analysis A pump is a mechanical device used to move fluids from a lower elevation to a higher one. In general, pumps are classified into two types: positive displacement pumps and non-positive displacement pumps. Centrifugal pumps fall into the latter category and operate by converting mechanical energy into kinetic energy to transport fluids. A centrifugal pump consists of several key components, including the casing, shaft, bearing, coupling, and impeller. In the case of closed impeller-type centrifugal pumps, wear rings (wearing components) are installed to provide a clearance between the impeller and the casing, preventing physical contact during operation. The size of this clearance significantly affects pump performance. Wear ring damage can result from mechanical wear, corrosion, cavitation, and fatigue, leading to performance losses such as reduced flow rate, lower pressure, and decreased efficiency. This research aims to analyze the effect of wear ring damage on the performance of a centrifugal pump by comparing operational data before and after repair of the wearing components. The performance parameters evaluated include pump head, pressure, hydraulic power, motor power, and overall efficiency. Data were collected through a structured procedure consisting of preparation, testing, measurement, and analysis. Prior to repair, the pump operated with a wear ring clearance of 1.2 mm, resulting in an average efficiency of 8.5% and a flow rate of 0.000646 m³/s. After the clearance was restored to 0.43 mm, the average efficiency increased to 15.5%, with a corresponding flow rate of 0.000932 m³/s. These results demonstrate that maintaining wear ring clearance within recommended standards significantly improves pump performance, highlighting the importance of regular maintenance and timely component repair. Universitas Mercu Buana 2025-04-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/30324 10.22441/ijimeam.v7i1.30324 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 7 No. 1 (2025); 43-51 2477-5428 2477-541X 10.22441/ijimeam.v7i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/30324/pdf Copyright (c) 2025 Moh Sahal Rifai, Nanang Ruhyat, Arief Surachman https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/30904 2026-09-05T07:48:37Z ijimeam:ART driver

Viability of R-290 Refrigerant as Residential AC Retrofit: Effect of Charge Mass Variations Aulia, Irham Haftirman, Haftirman Berman, Ega Taqwali R-290 refrigerant R-22 retrofit natural refrigerant retrofit mass variation Coefficient of Performance (COP) The growing concerns over ozone depletion and global warming caused by refrigerants have led to the search for environmentally friendly alternatives. This study evaluates the impact of varying R-290 refrigerant charge masses on the performance of a wall-mounted residential air conditioner using the drop-in substitute method. A ¾ HP residential AC unit originally charged with 550 grams of R-22 refrigerant was retrofitted with R-290 and tested at charge masses of 140 grams, 165 grams, and 190 grams—approximately 25%, 30%, and 35% of the original R-22 charge, in accordance with the commonly applied “one-third rule.” The results showed that retrofitting with R-290 increased the Refrigeration Effect (RE) by up to 75%, Compression Work (Wc) by 68%, and Coefficient of Performance (COP) by up to 18%. The system with a 25% refrigerant charge was unable to reach the set temperature due to a 23% reduction in cooling capacity, while the 30% charge showed a 10% reduction. The 35% refrigerant mass retrofit proved the most suitable, achieving adequate cooling capacity, an 18% increase in COP, and a 14% reduction in power consumption. Additionally, the retrofit resulted in an indirect CO₂ emission reduction of 1.15 metric tons annually, highlighting the environmental and energy-saving advantages of using R-290. These findings provide empirical validation of the one-third rule for refrigerant mass variation in R-290 retrofits and offer valuable insights into optimizing performance and efficiency in residential AC units, with significant energy and environmental benefits. Universitas Mercu Buana 2025-04-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/30904 10.22441/ijimeam.v7i2.30904 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 7 No. 2 (2025); 53-63 2477-5428 2477-541X 10.22441/ijimeam.v7i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/30904/pdf Copyright (c) 2025 Irham Aulia, Haftirman, Ega Taqwali Berman https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/31092 2026-09-05T07:53:57Z ijimeam:ART driver

Effect of Coconut Fiber and Coconut Shell Charcoal Composition on the Properties of PVC-Reinforced Composite Brake Pads Pandriana, Aap Kurniawan, Kurniawan Alva, Sagir Composite coconut fiber coconut shell charcoal PVC hot press brake pad The increasing concern over the health hazards associated with asbestos-based brake pads has driven the development of eco-friendly alternatives using natural fiber-reinforced composites. This study aims to fabricate and evaluate a sustainable brake pad material using coconut fiber as reinforcement, coconut shell charcoal powder as filler, and polyvinyl chloride (PVC) as the matrix. The composite was manufactured using the hot press method at a temperature of 180°C and a pressure of 7 MPa, conditions selected to optimize resin curing and interfacial bonding. A key focus of this research was to investigate the effect of solvent volume (cyclohexanone) used in the PVC resin preparation on the mechanical properties of the resulting composites. Three composite formulations were prepared with a constant composition of 70% coconut fiber, 5% charcoal powder, and 25% PVC resin, but with varying amounts of cyclohexanone solvent (200 mL, 150 mL, and 100 mL). The results revealed that reducing solvent content led to higher resin viscosity, which improved matrix–fiber bonding and increased both tensile strength and surface hardness. The optimal formulation—PVC Resin 3 with 100 mL of solvent—achieved a maximum tensile strength of 7.7 MPa and Shore D hardness of 72.2 HD, both of which meet the SAE J661-1997 standards for brake pad materials. This study confirms that solvent content is a critical factor influencing the density, strength, and durability of the composite. The findings support the feasibility of utilizing coconut-based agricultural waste in producing environmentally friendly brake pads with adequate mechanical performance. Universitas Mercu Buana 2025-04-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31092 10.22441/ijimeam.v7i1.31092 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 7 No. 1 (2025); 32-42 2477-5428 2477-541X 10.22441/ijimeam.v7i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31092/pdf Copyright (c) 2025 Aap Pandriana, Kurniawan, and Sagir Alva https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/31132 2026-09-05T07:53:25Z ijimeam:ART driver

Enhancing Homogeneity and Particle Size Reduction in Coffee–Creamer Mixtures Using Fluidized Bed Mixer Ruhyat, Nanang Multahada, Erna Sirait, Alfa Firdaus Fluidized bed mixer powder mixing particle size reduction moisture content coffee-creamer blends This study investigates the application of a fluidized bed mixer to improve the homogeneity, particle size distribution, and moisture reduction of coffee and creamer powder mixtures. The research focuses on three types of coffee particles—Type A (145 μm), Type B (100 μm), and Type C (50 μm)—which were mixed with creamer in a weight ratio of 1:0.7. The mixing process was conducted using a prototype fluidized bed mixer with a capacity of 1,000 grams and a blower speed range of 2,800–3,000 rpm. After 10 minutes of mixing, significant reductions in particle size were observed: Type A decreased by 20–30%, Type B by 10–15%, and Type C by 5–10%, with creamer particles also experiencing a 15% reduction. Moisture content dropped from 10.63% to 8.5%, demonstrating the system’s dual function of mixing and drying. Microscopic analysis revealed a uniform particle distribution with minimal agglomeration or segregation, confirming the effectiveness of the fluidized bed mixer in achieving a homogeneous blend. These findings underscore the potential of fluidized bed technology in improving the quality, stability, and handling properties of powder-based products. The results have important implications for instant beverage production, food formulation, and broader powder processing industries, where consistent product performance is essential. Universitas Mercu Buana 2025-03-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31132 10.22441/ijimeam.v7i1.31132 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 7 No. 1 (2025); 20-31 2477-5428 2477-541X 10.22441/ijimeam.v7i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31132/pdf Copyright (c) 2025 Nanang Ruhyat, Erna Multahada, Alfa Firdaus Sirait https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/31555 2026-09-05T07:49:19Z ijimeam:ART driver

Numerical Analysis of Heat Transfer Enhancement in Wavy Trapezoidal and Rectangular Microchannels Hazra, Soumik Kumar Microchannel Heat Sink (MCHS) wavy microchannels heat transfer enhancement Reynolds number Nusselt number friction factor This study presents a comprehensive numerical investigation of heat transfer enhancement in microchannels with varying geometries, specifically focusing on wavy microchannels with trapezoidal and rectangular cross-sections. Water is used as the working fluid, and silicon is selected as the solid wall material. A three-dimensional conjugate heat transfer model is developed by solving the steady-state Navier–Stokes and energy equations using the finite volume method in ANSYS Fluent, with the SIMPLEC algorithm employed for pressure–velocity coupling. The analysis examines the influence of cross-sectional shape and wall waviness on thermal performance, while maintaining a constant hydraulic diameter across all configurations. Eight different geometries, including smooth and wavy versions of rectangular and trapezoidal cross-sections with varying top-to-bottom width ratios (0.075–0.055 mm), are evaluated over a Reynolds number range corresponding to inlet velocities of 0.5–4.0 m/s. Results show that wavy microchannels significantly enhance heat transfer compared to their smooth counterparts. For instance, at 4 m/s, the Nusselt number for the wavy rectangular microchannel reaches 9.48, compared to 7.19 for the smooth rectangular configuration, representing a 32% enhancement. Similarly, the wavy trapezoidal channel with a top width of 0.18 mm achieves a maximum Nusselt number of 9.25, compared to 7.19 for its smooth equivalent, indicating a 29% improvement. Additionally, the Nu/Nu₀ versus Re plots reveal a consistent trend of increased heat transfer due to wall waviness across all geometries, with negligible influence from cross-sectional shape when hydraulic diameter is kept constant. The study demonstrates that incorporating wavy structures into microchannel designs significantly improves thermal performance with minimal increases in pressure drop, and that the effect is driven more by wall geometry than by cross-sectional shape. These findings provide valuable insights for the development of compact and efficient microchannel heat sinks for electronic cooling applications. Universitas Mercu Buana 2025-04-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31555 10.22441/ijimeam.v7i2.31555 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 7 No. 2 (2025); 74-87 2477-5428 2477-541X 10.22441/ijimeam.v7i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31555/pdf Copyright (c) 2025 Soumik Kumar Hazra https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/31577 2026-09-05T07:48:59Z ijimeam:ART driver

Fuel Efficiency Evaluation of Automatic Motorcycles in Indonesia Using MATLAB-Based Clustering Fadhilla, Eky Nur Monica, Zelvia Adnan, Farrah Anis Fazliatul Rhee, Jong Soo Ginting, Dianta Fuel efficiency modeling automatic scooters MATLAB-based clustering regression The continuous rise in fuel prices in Indonesia has made fuel efficiency a crucial factor for consumers when selecting vehicles, particularly motorcycles. Automatic scooters with engine capacities below 160 cc have become increasingly popular in urban areas due to their fuel-saving benefits. This study aims to analyze the influence of engine capacity, vehicle weight, and engine torque on the fuel consumption of automatic scooters with engine capacities ranging from 109 cc to 156.9 cc. The study also considers additional performance parameters, including average fuel consumption, power output, and Power-to-Weight Ratio (PWR). Using statistical analysis and MATLAB-based modeling, the data were classified into three distinct clusters. Cluster 1 comprises scooters with engine capacities between 109 and 125 cc; Cluster 2 includes those with capacities between 150 and 160 cc; and Cluster 3 represents scooters with unique component specifications. The results show that Cluster 2 records the highest average maximum power output at 11.47 kW and torque at 14.25 Nm, while Cluster 1 has the lowest at 6.1 kW and 9.64 Nm, respectively. In terms of weight, Cluster 3 is the heaviest, averaging 129.33 kg, while Cluster 1 is the lightest at 96.14 kg. Fuel efficiency is highest in Cluster 1 at 55.3 km/l and lowest in Cluster 3 at 38.67 km/l. Comparative analysis using MATLAB confirms that scooters with lower engine capacities and weights tend to be more fuel-efficient, whereas higher engine capacities lead to increased torque, power, weight, and fuel consumption. These findings can guide consumers in selecting motorcycles that align with their usage needs and assist manufacturers in developing more efficient and high-performing scooters tailored to diverse market segments. Universitas Mercu Buana 2025-04-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31577 10.22441/ijimeam.v7i2.31577 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 7 No. 2 (2025); 64-73 2477-5428 2477-541X 10.22441/ijimeam.v7i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31577/pdf Copyright (c) 2025 Eky Nur Fadhilla, Zelvia Monica, Farrah Anis Fazliatul Adnan, Jong Soo Rhee, Dianta Ginting https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/31721 2026-09-05T07:54:36Z ijimeam:RVW driver

Review: Optimizing Plastic Injection Processes for Enhanced Quality and Sustainable Manufacturing Lase, Asaeli Tongoni Arwati, I Gusti Ayu Plastic injection molding process parameter optimization Taguchi method Artificial Neural Networks (ANN) sustainable manufacturing In the automotive world, plastic products are components that cannot be separated. Almost all automotive products use plastic because it is easy to produce, and the price is relatively cheap compared to other materials. For applications such as covers, the demand on plastic surface quality are higher than for different uses. Therefore, a lot of costs are incurred to achieve this quality. However, ongoing efforts have decreased the time and expense of developing plastic molds. Many researchers have conducted studies to improve the quality of these products. This review consolidates several research articles on optimizing plastic injection processes to reduce defects and improve product quality. Techniques such as Taguchi Method, Response Surface Methodology (RSM), Artificial Neural Networks (ANN), and Finite Element Method (FEM) were evaluated in this research. This review highlights the importance of process parameters such as melt temperature, injection pressure, and cooling time, as well as the role of digital simulation in designing efficient and sustainable molds. The results of the study show that in several studies, defects often occur in the product without carrying out the optimization process. Still, the Taguchi and ANOVA methods can reduce the weld line and sink after optimizing the process parameters, such as melting temperature, injection pressure, cooling time, and injection speed. Mark up to 30%. These findings highlight the potential of these techniques to significantly improve product quality and support more sustainable manufacturing practices in the plastic injection molding industry. Universitas Mercu Buana 2025-04-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31721 10.22441/ijimeam.v7i1.31721 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 7 No. 1 (2025); 52-65 2477-5428 2477-541X 10.22441/ijimeam.v7i1 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31721/pdf Copyright (c) 2025 Asaeli Tongoni Lase, I Gusti Ayu Arwati https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/31800 2026-06-15T10:25:34Z ijimeam:ART driver

Correlation Analysis of Battery Capacity, Range, and Charging Time in Electric Vehicles Using Pearson Correlation and MATLAB Regression Sanusi, Yasa Pudjiwati, Sri Tarigan, Kontan Ginting, Dianta Adnan, Farrah Anis Fazliatun Timuda, Gerald Ensang Darsono, Nono Chollacoop, Nuwong Khaerudini, Deni Shidqi Electric vehicle Lithium Ferro Phosphate (LFP) Nickel Manganese Cobalt (NMC) Pearson correlation The increasing adoption of electric vehicles (EVs) reflects growing global awareness of climate change and air pollution challenges. As a sustainable alternative to conventional internal combustion vehicles, EVs produce zero tailpipe emissions and can significantly reduce carbon emissions—particularly when powered by renewable energy sources. However, one of the primary barriers to widespread EV adoption remains the high cost of battery components, which are essential to vehicle performance and energy storage. In Indonesia, two dominant battery types used in EVs are Lithium Ferro Phosphate (LFP) and Nickel Manganese Cobalt (NMC), each offering distinct advantages. LFP batteries are recognized for their thermal stability and longer life cycles, making them suitable for everyday use, while NMC batteries offer higher energy density and are preferred for performance-focused and long-distance applications. This study aims to evaluate the correlation between battery capacity, driving range, and charging time for LFP and NMC batteries using Pearson correlation and regression analysis through MATLAB simulation. The results indicate a strong and statistically significant correlation among the key parameters, with a Pearson coefficient of 0.576 for battery capacity and range, and an R-square value of 0.99 for the regression model, demonstrating high predictive accuracy. Furthermore, the analysis reveals that LFP batteries have a higher average energy efficiency of 7.53 km/kWh compared to 6.84 km/kWh for NMC batteries, indicating more consistent performance in energy usage. These findings offer valuable insights for optimizing battery selection in EV applications and contribute to strategic planning for the development of more efficient electric vehicle systems. The combination of statistical and simulation-based analysis provides a robust foundation for future research and policy-making in the field of electric mobility. Universitas Mercu Buana 2025-06-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31800 10.22441/ijimeam.v7i3.31800 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 7 No. 3 (2025); 116-127 2477-5428 2477-541X 10.22441/ijimeam.v7i3 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31800/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31800/pdf_1 Copyright (c) 2025 Yasa Sanusi, Sri Pudjiwati, Kontan Tarigan, Dianta Ginting, Farrah A. F. Adnan, Gerald E. Timuda, Nono Darsono, Nuwong Chollacoop, Deni S. Khaerudini https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/31812 2026-09-05T07:50:01Z ijimeam:ART driver

Handling and Stability Analysis of an Autonomous Vehicle Using Model Predictive Control in a CarSim–Simulink Co-Simulation Environment Yamin, Mohamad Mumtaz, Mega Maulida Firmansyah, Riyan Autonomous vehicle Model Predictive Control (MPC) trajectory tracking co-simulation vehicle stability handling performance Cars are a prevalent mode of transportation for both people and goods, with B-class hatchbacks being particularly popular in Indonesia. However, road traffic crashes remain a major concern, contributing millions of deaths annually, primarily due to human error. Autonomous vehicles offer a promising solution to mitigate these issues by reducing reliance on human control. In particular, Level 3 autonomous vehicles enhance road safety, enable independent mobility, reduce traffic congestion, and allow drivers to engage in non-driving tasks. This study proposes an autonomous vehicle model that employs a trajectory tracking approach using Model Predictive Control (MPC), a robust and widely adopted control strategy in autonomous systems. A three-degree-of-freedom (3-DOF) vehicle dynamic model was developed and analyzed through co-simulation using CarSim and Simulink to evaluate its performance during a double-lane change maneuver. The simulation results demonstrate that the vehicle accurately follows the reference trajectory and exhibits excellent dynamic performance. The roll angle remained consistently low, ranging between 0.024 and 0.026 radians—well below the rollover threshold of 0.14 radians—demonstrating strong roll stability. The slip angle varied between –0.013 and 0.0135 radians, nearly 12 times lower than the critical limit, indicating optimal traction and directional control. Lateral acceleration ranged from –3.59 m/s² to 3.41 m/s², and yaw rate remained within –7.78°/s to 7.25°/s, both well within safe operational bounds. These findings confirm that the proposed MPC-based control framework enables precise path tracking, robust stability, and reliable handling performance in dynamic driving scenarios. Universitas Mercu Buana 2025-04-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31812 10.22441/ijimeam.v7i2.31812 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 7 No. 2 (2025); 98-107 2477-5428 2477-541X 10.22441/ijimeam.v7i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/31812/pdf Copyright (c) 2025 Mohamad Yamin, Mega Maulida Mumtaz, Riyan Firmansyah https://creativecommons.org/licenses/by-sa/4.0

oai:ojs.pkp.sfu.ca:article/32806 2026-09-05T07:49:38Z ijimeam:ART driver

Use of Hibiscus rosa-sinensis as a Green Corrosion Inhibitor for Valve Materials in RO Water Pudjiwati, Sri Sanusi, Yasa Arwati, I Gusti Ayu Valve material corrosion rate ASTM A105N green inhibitor Hibiscus rosa-sinensis Valves are mechanical devices that regulate the flow of oil and gas fluids and are typically constructed from materials that are heat-resistant, corrosion-resistant, and capable of withstanding high pressure. However, observations from valve manufacturing companies in the Banten area have shown that valve components made from medium carbon steel ASTM A105N are susceptible to corrosion during hydrotesting, particularly when using reverse osmosis (RO) water as the testing medium. This corrosion can degrade product quality before delivery to customers. To address this issue, this study investigates the use of Hibiscus rosa-sinensis as a green corrosion inhibitor. The objective of this research is to evaluate the corrosion rate, inhibitor efficiency, and surface morphology of ASTM A105N valve materials using Hibiscus rosa-sinensis in RO water media, with varying inhibitor concentrations and immersion durations. The electrochemical methods used include Potentiodynamic Polarization, Electrochemical Impedance Spectroscopy (EIS), Chronoamperometry, and Scanning Electron Microscopy (SEM). Results from the corrosion rate tests indicated that the highest inhibitor efficiency—59.04%—was achieved at 24 hours of immersion with a 2 g inhibitor concentration. This condition also yielded the lowest corrosion rate of 1.2231 × 10⁻² mm/year and the lowest corrosion current (Icorr) of 3.2601 × 10⁻⁶ A/cm². Chronoamperometry testing confirmed these findings with the lowest electric charge value of 0.0125 C. SEM analysis further revealed a more uniform and homogeneous protective coating on the metal surface under these conditions. Based on these results, Hibiscus rosa-sinensis demonstrates promising performance as a green corrosion inhibitor and is recommended as an additive in RO water for valve hydrotesting. This study highlights the potential of environmentally friendly and cost-effective inhibitors in reducing corrosion risk in valve materials. Universitas Mercu Buana 2025-04-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/32806 10.22441/ijimeam.v7i2.32806 International Journal of Innovation in Mechanical Engineering and Advanced Materials; Vol. 7 No. 2 (2025); 88-97 2477-5428 2477-541X 10.22441/ijimeam.v7i2 eng https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/32806/pdf Copyright (c) 2025 Sri Pudjiwati, Yasa Sanusi, I Gusti Ayu Arwati https://creativecommons.org/licenses/by-sa/4.0 19f767061e5306742806a0ea2e2ffb5f