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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 15 Documents
 1   2 
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
Design Analysis Pillowblock Strength of Rotogravure Gearbox Uses Catia V5 Software Agung Nugroho; Yudiono, Heri
Jurnal Inovasi Mesin Vol. 6 No. 2 (2024): OCTOBER 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v6i2.11487

Abstract

The pillowblock has not been tested to determine the von Mises stress, displacement and safety factor values. The aim of this research is to analyze the results of the Pillowblock design analysis using the finite element method using CATIA V5 software.The research method used in this research is an experimental method. In this study, the independent variable used was variations in the thickness dimensions of the Rotogrvure Pillowblock Gearbox. The variations used are Pillowblock Close 1 with varying thicknesses (5 mm, 4 mm, 6 mm, 7 mm), Pillowblock Close 2 with varying thicknesses (6 mm, 5 mm, 7 mm, 8 mm) and Pillowblock Equipment with varying thicknesses (5 mm, 4 mm, 6 mm, 7 mm), the material used is ST 40 with a rotary bending load (bearing load). Tests were carried out using the fenite element method (FEM) to determine the value of von Mises stress, displacement and safety factor. The analysis results show that variations in pillowblock thickness have a high level of effectiveness and efficiency and have a safety factor value of ≥ 2, found in the Pillowblock Close 1 T4 (7 mm) with a von Mises stress value of 0.349 MPa, displacement 0.000046 mm, safety factor 787.96. Pillowblock Close 2 R4 (8 mm) with a von Mises stress value of 0.430 MPa, displacement 0.000062 mm, safety factor 639.24, and Pillowblock Equipment P4 (7 mm) with a von Mises stress value of 2.504 MPa, displacement 0.000312, safety factor 109.82.
Design and Validation of Horizontal Steam Retort with Capacity of 100 kg Presto milkfish Using Finite Element Method (FEM) Nofrizal Fajar Satria Pratama; Saputro, Danang Dwi
Jurnal Inovasi Mesin Vol. 6 No. 2 (2024): OCTOBER 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v6i2.12160

Abstract

Retorts are used in the food processing industry to sterilize packaged food products. Sterilization of presto milkfish using retort is done at 120℃ and 2 bar pressure. The retort is designed to work safely under these load conditions. This study aims to determine the safety quality of the horizontal steam retort design. Design validation is done by static analysis using finite element method (FEM) with Solidworks software. The retort design uses 18Cr-8Ni type 304 stainless steel material, with a sterilization load of 120℃ temperature, 2 bar pressure, and 100 kg of milkfish load. The analysis showed that the most considerable Von-Mises stress occurred on the torispherical head with a value of . The largest displacement occurs at the torispherical head of the retort door with a value of 1.078 mm. The retort design is concluded to be safe to use under sterilization load conditions with a safety factor value of 2.9.
Effect of Temperature and Time on the Sterilization Process of Soft-boned Milkfish Ahmad Tafsirul Hakim Nur Sya'bani; Musyono, Ari Dwi Nur Indriawan
Jurnal Inovasi Mesin Vol. 6 No. 2 (2024): OCTOBER 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v6i2.12273

Abstract

The objectives of this research are: 1) Analyzing the effect of sterilization temperature and time on protein content in soft spiny milkfish, 2) Analyzing the effect of sterilization temperature and time on the bacterial content in soft spiny milkfish, and 3) Knowing the ideal temperature and time in the milkfish sterilization process soft spines. There are various types of diversification of processed milkfish, including processing it into presto milkfish. The shelf life of pressure-cooked milkfish can be increased by sterilization using a high-pressure pressure cooker using a retort tool. In this study, the sterilization process used a combination of temperatures of 110°C, 121°C, 130°C, and times of 10, 20, and 30 minutes. The research method uses an experimental approach. The research location is CV Sekar Tekno, Semarang. The data collection technique uses observation, which is carried out by systematically observing and recording the symptoms being investigated. Data analysis techniques use descriptive statistics and analysis of variance/ANOVA. The results of the research showed that the effect of temperature and time on the sterilization process of soft spiny milkfish did not have a significant effect on the protein content of soft spiny milkfish. Although the protein content of soft spiny milkfish experienced changes up and down during the sterilization process, the protein content did not decrease significantly. The effect of high temperature in the sterilization process of soft spiny milkfish has a significant effect on the number of bacteria present in soft spiny milkfish after the sterilization process. This is indicated by the phenomenon of a constant decrease/value of bacterial content as shown in the following data: temperature 110°C is 148.44 CFU/g, temperature 121°C is 86.78 CFU/g, and temperature 130°C is 25.44 CFU/g. On the other hand, the effect of long sterilization time on the bacterial content of soft spiny milkfish tends to show an up-and-down phenomenon. This is indicated by an increasing trend in the number of bacteria at 30 minutes, which was 125 CFU/g. This phenomenon is caused by a leak in the retort pack used for soft spiny milkfish and other causes that are not yet known for certain in this process. Based on the results of the effect of temperature and time on protein levels and bacterial content, it shows that a temperature of 130°C has a high protein content of 16.6% with the lowest bacterial content, namely 45 CFU/g. At 20 minutes, it had a high protein content of 14.296% with the lowest bacterial content, namely 32.67 CFU/g. So the ideal temperature and time for the sterilization process of soft spiny milkfish is 130°C and 20 minutes
Design and Build Boilers for Modernization in the Tofu Industry Using Autodesk Inventor Feri, Feri; Isninda Yahaya, Habib Bayu; Aleihydro, Algifar Aldrinova; Prakoso, Bagus
Jurnal Inovasi Mesin Vol. 7 No. 1 (2025): APRIL 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v7i1.12472

Abstract

Most tofu producers still use steamers as boilers, which poses a risk to tofu quality. To reduce the risks and losses caused by this, a safe boiler construction is designed according to ASME (American Society of Mechanical Engineers) design standards. This research uses a Research and Development (R&D) approach supported by software capable of analysing model characteristics. The boiler construction was designed according to the ASME (American Society of Mechanical Engineers) standard, then the boiler design was created using Autodesk Inventor and a theoretical analysis was conducted using internal pressure loads to evaluate stress and displacement in the boiler construction. The results of the study obtained the specifications for a horizontal type of boiler with an operating steam pressure of 2 bar and a design pressure 4 bar. Boiler dimensions 600 mm in diameter, 1200 mm in length. Fuel uses firewood and the maximum volume of water that can be filled in the boiler is up to 113.1 litters. The material used for the plate is 5 mm stainless steel plate 304.
Performance Analysis of Diesel Engine Fueled by 2-Ethylhexyl Nitrate Mixed Biodiesel and the Use of XPower Fuel Ionizer with Injection Timing Variations Daffa Satya Roziqi; Hadromi
Jurnal Inovasi Mesin Vol. 6 No. 2 (2024): OCTOBER 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v6i2.15476

Abstract

Rapid technological developments encourage the use of diesel engines in transportation and industry due to greater efficiency and power. The cetane number is an important indicator of the quality of diesel fuel, where the addition of additives such as 2EHN can increase the cetane number and improve combustion. Tools such as Fuel Ionizers are also developed to improve fuel efficiency through molecular decomposition. This study aims to determine the power, torque, and specific fuel consumption values ​​in the 4D56 diesel engine when using 2EHN as a fuel mixture and the use of Fuel Ionizer. The power value increases by 1.2 Hp with a mixture of 0.4% 2EHN and the use of Fuel Ionizer at the 8ᴼ ATDC Timing Injection setting. The torque value increases by 2 Nm with a mixture of 0.4% 2EHN and the use of Fuel Ionizer at the 9ᴼ ATDC Timing Injection setting. The lowest specific fuel consumption value is 0.000084 Kg/Hph with a mixture of 0.4% 2EHN and the use of Fuel Ionizer at the 8ᴼ ATDC Timing Injection setting

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