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Tulus Burhanuddin Sitorus
Mechanical Engineering Universitas Sumatera Utara
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Journal : Jurnal Sistem Teknik Industri

 1 
Performansi Pipa Bersirip Alat Penukar Kalor Udara-Tanah Menggunakan Siklus Terbuka Manik, Terang UHSG; Sitorus, Tulus Burhanuddin; Situmorang, Mangontang
Jurnal Sistem Teknik Industri Vol. 23 No. 1 (2021): JSTI Volume 23 Number 1 January 2021
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsti.v23i1.5356

Abstract

In heat exchanger analysis using the Earth Air Heat Exchanger method, the overall heat transfer coefficient is known. This tool uses tubes in its design. The weakness of tube and plate type heat exchangers is the relatively low heat transfer coefficient, which can only reach a maximum of 60%. Therefore, a method to improve the heat transfer efficiency is using a fin. The purpose of this study is to calculate and compare the effectiveness (ε) value of experimental and theoretical of the Earth Air Heat Exchanger, as well as to find out the value of the coefficient of performance. The result showed that the average COP value of the experimental result is 0.63 at a speed of 1 m / s, 0.54 at the speed of 2 m / s, and 0.75 at the speed of 3 m / s, while theoretically is 0 , 73 at 1 m / s, 0.57 at 2 m / s, and 0.80 at 3m / s. For the value of the average effectiveness of the experimental results obtained 0.85 at the speed of 1 m / s, 0.93 at the speed of 2 m / s, and 0.89 at the speed of 3 m / s, while the theoretical result is 0.995 at the speed of 1 m / s, 0.997 at 2 m / s, and 0.998 at 3 m / s.
ANALISA DAN UJI EKSPERIMENTAL PERFORMANSI ALAT PENUKAR KALOR KOMPAK JENIS RADIATOR KENDARAAN BERKAPASITAS MESIN 1300 CC Terang U. H. S. G. Manik; Tulus Burhanuddin Sitorus; Ridha Irfandi
Jurnal Sistem Teknik Industri Vol. 20 No. 2 (2018): JSTI Volume 20 Number 2 July 2018
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1746.596 KB) | DOI: 10.32734/jsti.v20i2.482

Abstract

Salah satu komponen sistem pendingin pada mesin pembakaran dalam adalah alat penukar kalor kompak jenis radiator. Performansi suatu radiator berdampak besar terhadap sistem pendinginan mesin. Secara tidak langsung, radiator yang memiliki performansi tinggi akan meningkatkan efisiensi bahan bakar kendaraan melalui pengurangan bobot radiator. Penelitian ini bertujuan untuk menguji performansi radiator secara eksperimental dan perhitungan teoritis. Obyek penelitian ini ialah sebuah alat penukar kalor kompak jenis radiator yang digunakan pada kendaraan berkapasitas mesin 1300 cc. Alat penukar kalor tersebut dipasangkan pada serangkaian alat uji radiator. Hasil penelitian ini menunjukkan kesetimbangan energi yang diperoleh dari hasil eksperimental memiliki penyimpangan maksimum +/- 6 %. Koefisien perpindahan panas maksimum sisi udara dan air ialah 35,3 W/m2.K dan 252,39 W/m2.K. Penyimpangan antara temperatur udara dan air keluar radiator secara teoritis dan eksperimental sebesar rata-rata 8,47 % dan 1,1 %.
Co-Authors Andi Syahputra Arief Hariyanto Daniel F.B Sinaturi David Chandra Derrick Tanadi Elisabeth Ginting Farida Ariani Farida Ariani Ferry Sembiring Ginting, Elizabeth Jaya Arjuna Jonathan A.R Siagian Lestina Siagian Manik, Terang U.H.S. Ginting Manik, Terang UHS Ginting Manik, Terang UHSG Mulfi Hazwi Rachmat Kentardjo Ridha Irfandi Ryan Alexander Sembiring, Ferry Sembiring, Ferry Situmorang, Mangontang Suprihatin - Syahrul Abda Syahrul Abda Tekad Sitepu Tekad Sitepu Terang U. H. S. G. Manik Wiranto Arismunandar Yosua F.S.R Zebua Zulkifli Lubis Zulkifli Lubis