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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
 1 
Search results for , issue "Vol. 6 No. 2 (2024): OCTOBER 2024" : 5 Documents clear
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
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
Strength Analysis of Wheel Stopper Design on Dyno Test Based on Solidwork 2019 Software Purba, Samuel Julianto; Aryadi, Widya
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.v6i2.20153

Abstract

Various innovations have been made in all parts of the world to deal with global warming. One of them is making electric vehicles. One of the things that must be done to keep up with the number of electric vehicle production is to innovate the vehicle 'test' tool. The dyno test is one of the 'test' tools for electric vehicles on two wheels. One of the innovation gaps that can be addressed is creating a wheel stopper design on a new dyno test to speed up production time. The wheel stopper was designed using a hydraulic system with MTEK WC1 UNS J13047 cast alloy steel metal material. The design was done using Autodesk Inventor 2024 and analyzed using Solidwork 2019. Then, the analysis results are compared with the existing wheel stopper design using ASTM A36 steel. It will also determine whether a hydraulic system design can be implemented. The maximum displacement and minimum safety factor results obtained on the hydraulic wheel stopper are 0.1746 mm and 2.5. These results show that the hydraulic wheel stopper design can be implemented

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