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JMPM (Jurnal Material dan Proses Manufaktur)
Published by Universitas Muhammadiyah Yogyakarta
ISSN : 25803271     EISSN : 26565897     DOI : 10.18196/jmpm
Core Subject : Engineering,
Engineering Mechanical Engineering
Jurnal Material DAN Proses Manufaktur focuses on the research and research review in the field of engineering material and manufacturing processes. The journal covers various themes namely Design Engineering, Process Optimization, Process Problem Solving, Manufacturing Methods, Process Automation, Material research and investigation, Advanced Materials, Nanomaterials, Mechanical solid and fluid, Energy Harvesting and Renewable Energy.
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Articles 13 Documents
 1   2 
Search results for , issue "Vol. 7 No. 2 (2023): December" : 13 Documents clear
Analisa Perbandingan Desain Panel Distribusi dengan Metode Computational Fluid Dynamics Hutama, Adhi Setya; Kurniawan, Yohanes Hendra; Jati, Fajar Pranawa; Samodra, Yudha
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): December
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.19905

Abstract

A distribution panel is a piece of equipment or device that consists of several electrical components that are arranged and arranged in such a way that they can distribute electrical power, and its use must guarantee security for users, so a Type-test is needed to determine the security of the distribution panel, one of the type-test tests is the temperature rise test. The temperature rise test was successfully carried out, but there are still problems, namely the heat distribution is unknown. The Computational Fluid Dynamics (CFD) method with flow simulation software can be used for heat transfer analysis in distribution panel systems, so that an ideal panel design is obtained to overcome overheating. The CFD analysis process is carried out by comparing 3 distribution panel designs, namely the first design using an exhaust fan, the second design with one output ventilation, and the design without an exhaust fan. Based on the results of the CFD analysis, the safest distribution panel results were obtained, namely the first design using an exhaust fan, the design with an exhaust fan experienced a temperature drop of 4°C compared to the design without an exhaust fan and the second design when viewed from surface 9.
Pengaruh Densitas dan Viskositas terhadap Sudut Injeksi Biodiesel Jatropha-Jagung (1:4 dan 4:1) Wahyudi, Wahyudi; Caroko, Novi; Sampurna, Hanif Budi
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): December
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.20072

Abstract

Biodiesel has attracted attention as an alternative fuel in efforts to reduce emissions and dependence on fossil fuels. Among various potential sources for biodiesel production, jatropha and corn oil have stood out due to their availability and high yield potential. However, each has unique characteristics that affect their performance as fuels. Jatropha oil has relatively high viscosity, while corn oil is generally used as a food ingredient. This study aimed to explore the potential of combining jatropha and corn biodiesel in different proportions and its impact on fuel characteristics and diesel engine spray injection. Both types of oil were processed into biodiesel through esterification and transesterification processes. Subsequently, biodiesel mixtures were created in ratios of 1:4 and 4:1. Each mixture was then varied with diesel to produce B5, B10, B15, B20, B25, B30, B35, and B40. Each sample was tested for its physical properties such as density and viscosity, and injection spray angle. The results of this study indicated that the density and viscosity values of the 1:4 jatropha-corn biodiesel mixture were lower than those of the 4:1 jatropha-corn biodiesel mixture. There was a significant relationship between viscosity and density with the injection angle. The higher the density and viscosity, the narrower the injection angle.
Analisis Pengaruh Parameter Hardening terhadap Distorsi Spesimen CT58 dengan Metode Taguchi Kurniawan, Perwita; Sartoyo, Millenino Bergas; Nugraha, Aditya; Nugroho, Adi
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): December
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.20073

Abstract

This research discusses the problem of distortion of cigarette engine components after the hardening process. This research focuses on changes in the dimensions of the hole diameter, gap width, and flatness of the components. The austenite temperature, quench medium, and tempering temperature were examined to determine their effect on distortion. Components are made of machine steel group S45C equivalent to AISI 1045. This study used a specimen named CT58 with Austenite temperature variations of 820 ̊C 840 ̊C 860 ̊C, then variations of oil, oil + water, and water quenching media and Tempering temperature variations of 200 ̊C, 250 ̊C, and 300 ̊C. This research used the Design of Experiment, followed by statistical analysis using the Minitab application. The results showed that the distortion in the CT58 specimen was most affected by the Austenite temperature, followed by the Quench medium and Tempering temperature. The austenite temperature of 820°C, the oil quench medium, and the tempering temperature of 250°C are the best hardening parameters for the Inner Diameter aspect. The austenite temperature of 820°C, oil quench media, and tempering temperature of 250°C are the best setting parameters for the Gap Width aspect. The austenite temperature of 820°C, oil quench media, and tempering temperature of 250°C are the best setting parameters for the Flatness aspect

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