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All Journal Motor Bakar : Jurnal Teknik Mesin Akuntansi'45 Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat) JPMAT Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Jurnal Ilmiah Teknik Mesin, Elektro dan Komputer
Althesa Androva
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences Transportation Other

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SIMULASI COMPUTATIONAL FLUID DYNAMICS (CFD) PADA PENGARUH MATERIAL SIRIP TERHADAP LAJU PERPINDAHAN PANAS PADA HEAT SINK Dwi Suryo Wicaksono; Muhamad Safi'i; Althesa Androva
Motor Bakar : Jurnal Teknik Mesin Vol. 10 No. 1 (2026): Motor Bakar: Jurnal Teknik Mesin
Publisher : Universitas Muhammadiyah Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31000/mbjtm.v10i1.16836.g%g

Abstract

Abstrak  Heat sink merupakan komponen penting dalam sistem pendinginan perangkat elektronik yang berfungsi meningkatkan pelepasan panas ke lingkungan. Penelitian ini bertujuan menganalisis pengaruh variasi material sirip terhadap performa perpindahan panas pada heat sink menggunakan metode Computational Fluid Dynamics (CFD). Simulasi dilakukan menggunakan material sirip tembaga, aluminium, kuningan, dan stainless steel dengan geometri serta kondisi operasi yang sama. Hasil menunjukkan bahwa material dengan konduktivitas termal lebih tinggi menghasilkan performa pendinginan yang lebih baik. Tembaga memberikan performa terbaik dengan temperatur rata-rata terendah sebesar 298,5 K dan selisih temperatur (ΔT) terkecil sebesar 9,0 K, diikuti aluminium (302,1 K), kuningan (307,8 K), dan stainless steel (315,4 K). Hasil penelitian menunjukkan bahwa pemilihan material sirip berpengaruh signifikan terhadap efektivitas pendinginan heat sink dengan urutan performa termal tembaga > aluminium > kuningan > stainless steel. Kata kunci: Computational Fluid Dynamics (CFD), heat sink, material sirip, perpindahan panas, distribusi temperatur.
Analisis Performa Auxiliary Plate-Fin Cooler (Hayden 679) dalam Menjaga Stabilitas Termal Automatic Transmission Fluid pada Mesin Diesel Zulfikar Nadirsyah; Muhamad Safi'i; Althesa Androva
Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Vol. 4 No. 3 (2026): Juli: Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipi
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/konstruksi.v4i3.1423

Abstract

Automatic Transmission Fluid (ATF) degradation due to high thermal loads is the main cause of automatic transmission failure in high-torque diesel vehicles. This study aims to analyze the effectiveness of installing an external plate-fin oil cooler (Hayden 679) in maintaining ATF thermal stability. The test object used was a Chevrolet Captiva Diesel 2.0L VCDi with a 6-speed automatic transmission. ATF temperature data was acquired in real-time via the OBD-II protocol under heavy load conditions (road gradient > 15° and a constant speed of 110 km/h). The results showed that the auxiliary cooler was able to limit the maximum ATF temperature to 79°C, which is within the ideal range of 70–90°C. When compared to the standard system that reaches > 90°C, a peak temperature reduction of 14°C was obtained, which represents a thermal reduction efficiency of 15.05% and a heat dissipation of 1.4 kW. It was concluded that the use of Hayden 679 was effective in improving the thermal stability and durability of diesel transmission components.
Co-Authors Aan Burhanuddin Aditya Bagas Damara Agus Mukhtar Ahmad Wildanu Akhmad Syakhroni Dwi Suryo Wicaksono Hisyam Ma’mun Irwan Ardiyatna Lusiana Marita M. Ari Bowo M. Sagaf Maulana Abdi Ardiyansyah Muchammad Sulthon Imaddudien Muhamad Safi'i Muhammad Ridho AlHafizh Raditya bayu herlambang Ramadhan Hafidz Safi'i, Muhamad Syahrendra Ario Bramantyo Syahrul Huda Mauludana Yunia Wahyu Wijayani Zulfikar Nadirsyah