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All Journal REKAYASA Conference on Innovation and Application of Science and Technology (CIASTECH)
Khoirudin Khoirudin, Khoirudin
Department of Computer Applied Technology, Nanchang University, China 999 Xuefu Road, Honggutan New District, Nanchang, Jiangxi Province, P.R. China Telp:+86-791-83969099 Fax:+86-791-83969069
Agriculture, Biological Sciences & Forestry Computer Science & IT Education Electrical & Electronics Engineering Engineering Law, Crime, Criminology & Criminal Justice Physics Social Sciences

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ANALISIS PENGARUH JARAK ANTAR SIRIP DAN LAJU ALIRAN TERHADAP KOEFISIEN PERPINDAHAN KALOR PADA ALAT PENUKAR KALOR PIPA GANDA Khoirudin, Khoirudin; Mulyadi, Dodi; Rahdiana, Nana
Conference on Innovation and Application of Science and Technology (CIASTECH) CIASTECH 2020 "Peranan Strategis Teknologi Dalam Kehidupan di Era New Normal"
Publisher : Universitas Widyagama Malang

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Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh jarak antar sirip, laju aliran dalam, dan laju aliran luar terhadap koefisien perpindahan kalor menyeluruh pada alat penukar kalor pipa ganda. Penelitian ini menggunakan dua pipa, yaitu pipa tembaga 1/2 inch yang dialiri air panas dan pipa alumunium 1 inch yang dialiri air dingin. Populasi yang digunakan dalam penelitian ini adalah pipa bersirip enam jarum dengan variasi jarak antar sirip 10 mm, 15 mm, dan 20 mm, variasi laju aliran dalam 0,06 lt/dt, 0,08 lt/dt, 0,1 lt/dt, dan laju aliran luar 0,07 lt/dt, 0,1 lt/dt, 0,13 lt/dt. Hasil penelitian menunjukan ada perbedaan nilai perpindahan kalor dari masing-masing variasi, antara variasi jarak antar sirip, laju lairan dalam, dan laju lairan luar. Koefisien perpindahan kalor paling rendah terjadi pada interaksi pipa tanpa sirip, laju aliran dalam 0,06 lt/dt, dan laju aliran luar 0,07 lt/dt, yaitu sebesar 890,74 W/m2ËšC. Sedangkan koefisien perpindahan kalor paling tinggi terjadi pada interaksi jarak antar sirip 15 mm, laju aliran dalam 0,1 lt/dt, dan laju aliran luar 0,13 lt/dt yaitu sebesar 1784,84 W/m2ËšC.
Evaluasi Desain Bejana Bertekanan pada Radiator Cooling System Menggunakan Material SPCC-SD Sukarman, Sukarman; Khoirudin, Khoirudin; Murtalim, Murtalim; Mulyadi, Dodi; Rahdiana, Nana
Rekayasa Vol 14, No 1: April 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i1.9570

Abstract

This study discusses the analysis of a pressure vessel's design in the Radiator Cooling 1000 (RC-1000) system, which operates at a design temperature of 110oC. A pressure vessel is a container of gaseous, solid, or liquid material subjected to internal or external pressure and can withstand various other load variations. The pressure vessel on the RC-1000 system has a outer diameter of 87.8 mm or 3.46 inches and will experience an internal pressure of about 20.84 psi or 143.7 kPa, so it must be designed safely. This research method uses analytical and experimental methods. The analytical method is used to calculate the thickness of the pressure vessel material, the maximum allowable working pressure, and the hydrostatic test calculation. While the experimental method was carried out on the hydrostatic test process, the evaluation was based on the prevailing regulations in the Republic of Indonesia. Using the SPCC-SD material (JIS 3141), it was found that the minimum thickness of this pressure vessel is 0.0453 inches on the shell side and 0.0435 inches on the head/head side. The thickness of the material used on the shell side and head/head is 0.0472 inches in practice. This pressure vessel has passed the hydrostatic test at 232.1 psi or 1600 kPa.
Co-Authors Amri Abdulah Dodi Mulyadi Murtalim, Murtalim Rahdiana, Nana Shieddieque, Apang Djafar Sukarman Sukarman