Open AccessPerformansi Pipa Bersirip Alat Penukar Kalor Udara-Tanah Menggunakan Siklus Terbuka
Author(s) -
T. U. H. S. G. Manik,
Tulus Burhanuddin Sitorus,
M Situmorang
Publication year - 2021
Publication title -
jurnal sistem teknik industri
Language(s) - English
Resource type - Journals
eISSN - 2527-9408
pISSN - 1411-5247
DOI - 10.32734/jsti.v23i1.5356
Subject(s) - heat transfer coefficient , heat exchanger , coefficient of performance , thermodynamics , materials science , mechanics , heat transfer , chemistry , physics , heat pump
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.