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Jurnal Inovasi Mesin
Published by Universitas Negeri Semarang
ISSN : -     EISSN : 27467694     DOI : https://doi.org/10.15294/jim
Core Subject : Engineering,
Mechanical Engineering
The main scope of the JIM is to publish original research articles in the area of mechanical engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 5 Documents
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Search results for , issue "Vol. 6 No. 1 (2024): APRIL 2024" : 5 Documents clear
Analysis of Battery Pack Cooling System Design Using Computational Fluid Dynamics Method in Electric Vehicle Selvia; Naryanto, Rizqi Fitri; Amrullah, Apip
Jurnal Inovasi Mesin Vol. 6 No. 1 (2024): APRIL 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v6i1.1907

Abstract

The objective of this research is to address the heat increase in the battery, ensuring it remains below   40°C   through a cooling   system.   Through   Computational   Fluid   Dynamics (CFD) simulations, the impact of using Aluminium 6061, Aluminium Duralumin, and Copper, as well as the effects of cooling fluids H2O and Ethylene Glycol on the battery pack cooling system, are analyzed.  Data collection is conducted using Solidworks 2022 with the Flow Simulation feature, followed by a descriptive statistical analysis to identify the optimal cooling system for the battery pack. Simulation results indicate the most optimal performance at an inlet speed of 3 m/s. For H2O, Copper maintains a temperature of 37.14°C, while Aluminium 6061 and Aluminium Duralumin reach temperatures of 37.36°C and 37.34°C, respectively. In the case of Ethylene Glycol at a speed of 3 m/s, Copper records a temperature of 194.75°C, while Aluminium 6061 and Aluminium Duralumin achieve temperatures of 197.94°C and 195.34°C, respectively.  Based on this research, Copper and H2O are identified as the best choices.
Strength Analysis of Rollers and Supports of A Hydraulic Dynamometer Chassis Using Finite Element Method Bagaskoro, Satria; Aryadi, Widya
Jurnal Inovasi Mesin Vol. 6 No. 1 (2024): APRIL 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v6i1.8961

Abstract

The measuring performance tool of electric motorcycle in Indonesia is limited, which in contrast to the rapid development of motorcycle technology. Therefore, this study aims to develop a chassis hydraulic dynamometer as a tool to measure the mechanical parameters of electric motorcycles This research was conducted using an experimental method based on simulations with SolidWorks 2022 software as the simulation tool for roller and support strength. Simulation was performed on variations 35 mm, 40 mm, and 45 mm shaft diameter roller, using AISI 1045 steel material. Based on calculations and simulation results, a roller with a 35 mm shaft diameter can withstand the applied external load with a maximum von Mises stress of 2,394 x 108 N/m2², a maximum strain of 7,283 x 10-4, a maximum displacement of 6,275 x 10-2 mm, and a minimum safety factor of 2.2. Based on calculations and simulation results, the roller with a 35 mm shaft diameter is safe, optimal, and efficient in terms of material usage. Therefore, a roller with a 35 mm shaft diameter and SKF UCP 207 support was selected for use on the chassis hydraulic dynamometer
Effect of Dual External Exhaust System with Activated Charcoal and Reheater on Diesel Engine Exhaust Emissions muhammad riyadi, muhammad riyadi; Septiyanto, Angga; Wijaya, Burhan Rubai; Roziqin, Ahmad
Jurnal Inovasi Mesin Vol. 6 No. 1 (2024): APRIL 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v6i1.10229

Abstract

The increase in the mass and widespread use of diesel engines can lead to an increase in exhaust emissions, which can have a negative impact on the environment and human health with an increase in the number of vehicles and activities in workshops and test sites, there is a need to minimize the emission of exhaust gases during the process, The need for additional alternative methods that can help reduce emissions in places where there are potentially many vehicles in vehicle repair shops vehicle repair shops, at vehicle test sites and light vehicle practice places of automotive vocational high schools,, the development of additional equipment that is attached or added to an object without changing from that object or   after treatment tools It is still rarely found, especially in ordinary workshops, even official workshops are still uneven and not optimal, reducing exhaust gas levels when the vehicle stops or is static. This study uses an experimental method by making after treatment tools in the form of dual external exhaust systems that are attached to vehicles during emission testing and testing that emit smoke or vehicle exhaust emissions as an alternative effort in handling vehicle emissions, especially diesel engines. The tool in the form of a dual external exhaust system with activated charcoal and a reheater with temperature variations from the reheater at temperatures of 100 °C, 150 °C, and 250 °C is used in conventional diesel vehicles and common rail diesel vehicles. Tests are taken 3 times on each specimen/variation.  The results of this study show that first, there is an effect of dual external exhaust systems with activated charcoal and reheater on the exhaust gas emissions of conventional diesel engines, the effect obtained is a decrease in CO emission results from 0.47 to 0.10 with a percentage decrease of 78% and Opacity from 82 to 46 with a percentage of 44%. Then the second is the influence of dual external exhaust systems with activated charcoal and reheaters on the exhaust gas emissions of common rail type diesel engines. The effect obtained was a decrease in CO emission results from 0.05 to 0.01 with a percentage decrease of 80% and Opacity from 32 to 23 by 28%
Effect of Using Magnetic Coil in Fuel Pipeline on Multi-Cylinder Gasoline Engine Performance Budiman, Febrian Arif; Huda, Alfin Miftakhul; Maulana, Sonika
Jurnal Inovasi Mesin Vol. 6 No. 1 (2024): APRIL 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v6i1.10939

Abstract

The increase in automotive technology, especially cars, has caused the availability of fuel to decrease. This is because more and more fuel are needed by vehicles while the amount of fuel on earth is dwindling because petroleum is a non-renewable natural resource. Motorized vehicles must not only save fuel but also have good performance. The better the fuel quality, the better the combustion process so that the greater the power and torque produced. So there needs to be an ideal fuel mixture for good combustion of multi-cylinder gasoline engine performance. Several things can be done to improve engine performance and fuel economy ranging from creating fuel saving devices, changing engine construction, hybrid technology to finding alternative fuels. This research uses an experimental research method with a descriptive quantitative approach to determine the effect of using magnetic coils on fuel pipelines on engine performance. The results showed the largest increase in power value of 12.89% in the use of magnetic coil with a copper wire diameter of 0.40 mm using first fuel at 2500 rpm. While the largest increase in torque value of 70.60 Nm to 79.70 Nm on the use of magnetic coil with a copper diameter of 0.40 mm at 2500 rpm using first fuel.
The Effect of Stroke Up and Bore Up on The Performance of Honda Verza Motorcycle damayanti, lydia; Septiyanto, Angga
Jurnal Inovasi Mesin Vol. 6 No. 1 (2024): APRIL 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v6i1.11178

Abstract

Many young people make bore up and stroke up modifications to improve the performance of their motorbike engines. which is used for daily activities and racing contests. Apart from that, this modification is necessary for some people, especially men, because most of the people in Juwana work as farmers in fish ponds. Apart from that, the condition of the roads in the pond is still dirt, which makes the roads muddy when it rains. Because motorbikes are used to transport fish harvests and as transportation, their motorbikes also require more power. This research uses an experimental research design by changing the stroke length and piston diameter on a Honda Verza motorbike with variations of Stroke Up, Bore Up and Stroke Up Bore Up. With testing steps using a dynotest 3 times on each motorbike variation to determine the performance of the Honda Verza motorbike. The results of this research show an increase in torque and power produced after modifying the stroke up and bore up. The resulting modification of increasing the piston diameter (bore up) affects the torque and power values produced by the Honda Verza motorbike. The torque value increased by 1.34% at 10,000 rpm and the power value increased by 1.39% at 13,000 rpm. Meanwhile, the stroke up variation affected the power and torque produced by the Honda Verza motorbike. The results obtained from testing the stroke up engine experienced an increase in torque value of 1.36% at 11000 rpm and the power produced increased by 3.16% at 13000 rpm

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