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INDONESIA
Journal of Mechanical Engineering
Published by Indonesian Journal Publisher
ISSN : -     EISSN : 30465907     DOI : https://doi.org/10.47134/jme
Core Subject : Engineering,
Automotive Engineering Engineering
The Scope of Journal of Mechanical Engineering is: Design Engineering: This journal covers topics such as machine design, structural analysis, design optimization, and the latest design techniques in mechanical engineering. Material Engineering: Encompassing studies on material properties, material characterization, material modelling, and material applications in the context of mechanical engineering. Thermal Engineering: Presenting current research on thermal systems, heat transfer, thermal fluids, and the application of thermal technology in mechanical engineering. Mechatronics: Covering the integration of mechanics, electronics, and control technology in the design and manufacturing of advanced mechanical systems. Manufacturing: Featuring articles on manufacturing techniques, manufacturing processes, and innovations in mechanical product manufacturing. Fluid Dynamics: Providing research on fluid flow, turbulence, aerodynamics, hydraulics, and engineering applications in fluid dynamics. Energy and Environment: Discussing the development of renewable energy technologies, energy efficiency, environmental impacts, and environmentally friendly technologies in the context of mechanical engineering. Automotive Engineering: Including articles on the latest developments in automotive design, production, and automotive technology. The Journal of Mechanical Engineering provides a forum for original research, review articles, technical papers, and practical contributions in all aspects of mechanical engineering. Its aim is to facilitate the exchange of ideas and the latest updates in this field, as well as to encourage innovation and advancement in mechanical technology.
Arjuna Subject : Teknik (semua kategori) - Teknik Otomotif
Articles 4 Documents
 1 
Search results for , issue "Vol. 2 No. 4 (2025): October" : 4 Documents clear
Studi Optimasi Pengaruh Suhu dan Massa Terhadap Kadar Air Ikan Pada Proses Freeze Drying Dhiaulhaq, Wimala; Widjanarko
Journal of Mechanical Engineering Vol. 2 No. 4 (2025): October
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jme.v2i4.4381

Abstract

Indonesia memiliki potensi perikanan yang melimpah, baik dari hasil tangkapan maupun budidaya air tawar dan air asin. Oleh karena itu, pengolahan hasil perikanan melalui pengawetan menjadi sangat penting untuk menjaga kualitas ikan selama distribusi dan pemasaran, sekaligus meningkatkan nilai ekonomis produk. Salah satu metode pengawetan yang populer adalah pengeringan beku, yaitu proses pengeringan yang menggunakan tekanan vakum dan suhu rendah untuk mengubah air dalam bahan dari fase padat (beku) langsung menjadi uap, tanpa melewati fase cair dan tanpa pemanasan tinggi. Metode ini mampu mempertahankan kualitas dan nilai gizi produk lebih baik dibandingkan metode pengeringan konvensional. Penelitian ini bertujuan untuk menganalisis kinerja mesin pengering beku dengan memvariasikan suhu dan massa spesimen ikan lele. Variasi suhu yang digunakan berkisar antara 0°C hingga -15°C, sedangkan massa ikan yang diuji berkisar antara 100 gram hingga 130 gram. Pendekatan yang digunakan adalah metode eksperimental kuantitatif dengan pengukuran kadar air yang berhasil dihilangkan selama proses pengeringan beku. Data yang diperoleh kemudian dianalisis menggunakan perangkat lunak Minitab untuk mengetahui pengaruh variasi suhu dan massa terhadap kadar air. Hasil penelitian ini diharapkan dapat memberikan wawasan mengenai pengaruh kedua variabel tersebut terhadap efektivitas pengeringan beku pada ikan patin, serta dapat menjadi acuan untuk pengembangan teknologi pengawetan ikan yang lebih efisien dan berkualitas..
Analysis and modeling of Stresses and Deflections Generated on the Reversible Moldboard plow Attached to the Angular Scraper Under various soil conditions Haleem, Rateeb; Rajab, Adel
Journal of Mechanical Engineering Vol. 2 No. 4 (2025): October
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jme.v2i4.4767

Abstract

This study was conducted theoretically using the (Inventor) software, which relies on the finite element method to determine the values of both maximum stress, principal stress, and deflection for both the angular scraper and the moldboard plow under conditions similar to field conditions. The study was conducted in two stages: the first stage involved fixing the dimensions and measurements of the angular scraper and then manufacturing it. The second stage involved field evaluation of the performance efficiency of the locally manufactured reversible moldboard plow with the angular scraper, comparing it with the reversible moldboard plow without the angular scraper, and studying some field performance indicators through a practical experiment that included the following factors: the use of the reversible moldboard plow at two levels (with the locally manufactured angular scraper and without the angular scraper), soil condition at two levels (with weed soil and without weed soil), using a Randomized Complete Block Design (RCBD) with split-plot design, and the effect of these factors on the studied traits, which included stress, vertical deflection ratio, lateral deflection ratio, and performance efficiency. The results showed that the angular scraper recorded higher values for both maximum stress and principal stress, while the moldboard of plow recorded the highest value for deflection. Moreover, untilled soil condition significantly outperformed in providing higher values for performance efficiency, while tilled soil condition significantly outperformed in providing higher values for both vertical and lateral deflection ratios. As for the plow, the plow with the angular scraper significantly outperformed in recording higher values for performance efficiency, while the plow without the angular scraper significantly outperformed in recording higher values for both vertical and lateral deflection ratios.
Circular Strategy Through Heat Treatment of Recycled Piston Rings for the Sustainability of the Automotive Economy Abdillah, Fuad; Fatra, Fahmi
Journal of Mechanical Engineering Vol. 2 No. 4 (2025): October
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jme.v2i4.4938

Abstract

This study investigates the enhancement of mechanical performance in recycled piston rings through strategic heat treatment. The research focuses on optimizing heat treatment parameters—including austenitizing temperatures (800°C, 850°C, and 900°C), holding times (1, 2, and 3 hours), and cooling media (water, oil, and air)—to restore the hardness of used piston rings to levels comparable to new ones. Experimental methods were employed to evaluate the effects of these variables on material hardness. Results show that a holding time of three hours significantly improved hardness, with the highest achieved value reaching 38.66 HRC—nearly matching that of new piston rings (39.94 HRC). These findings demonstrate that properly controlled heat treatment can effectively rejuvenate recycled piston rings, offering a viable pathway to improve resource efficiency and reduce metal waste in the automotive industry
Development of Fuel Cell Technology and Applications: A Review Elaibi, Ali Mohammed
Journal of Mechanical Engineering Vol. 2 No. 4 (2025): October
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jme.v2i4.5001

Abstract

Fuel cell technology is considered one of the most important solutions for clean energy, characterized by its high efficiency, minimal pollution, and adaptability across various sectors such as transportation, stationary energy, and portable electronics. Over the past two decades, significant progress has been made in materials science, system design, and cost optimization, enhancing the feasibility of commercialization. This paper follows the development of various types of fuel cells, including Proton Exchange Membrane Fuel Cells (PEMFC), Solid Oxide Fuel Cells (SOFC), Direct Methanol Fuel Cells (DMFC), Phosphoric Acid Fuel Cells (PAFC), Molten Carbonate Fuel Cells (MCFC), and Alkaline Fuel Cells (AFC), highlighting key innovations and market launches. The review emphasizes significant technical challenges, particularly concerning durability, catalyst degradation, and hydrogen infrastructure systems. Additionally, it outlines the existing state of fuel cell technology and proposes a strategy for integrating fuel cells into global low-carbon energy systems. From a decarbonization perspective, incorporating fuel cells into energy systems is crucial, as they not only provide high efficiency but also operate without emitting harmful pollutants. The article reviews advancements in fuel cell technology from 2020 to 2024, comparing performance metrics with market applications and obstacles to market entry. Assessments of over 80 peer-reviewed studies indicate that PEMFCs are achieving 0.85 A/cm² at 0.6V, while SOFCs are reaching 60% electrical efficiency in combined heat and power (CHP) applications. Currently, most deployments, comprising 62% of market share, are in the transportation sector; however, significant challenges remain in material stability and hydrogen infrastructure. Progress in fuel cell technology hinges on the integration of anion-exchange membranes, platinum-group-metal-free catalysts, and advanced manufacturing capabilities.

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