Effect of Heat Input Condition on Evaporator to the Performance of High Temperature Heat Pump

Djuanda, Djuanda (2023) Effect of Heat Input Condition on Evaporator to the Performance of High Temperature Heat Pump. International Journal of Latest Engineering Research and Applications (IJLERA), 8 (4). pp. 28-33. ISSN 2455-7137

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Official URL: http://www.ijlera.com/vol8-iss4.html

Abstract

Condition of heat input in the evaporator is very influential on the performance of heat pumps. Analytical studies have been conducted with two main variables, namely temperature and load input to the evaporator. Refrigerant used in this study is isobutene (R-600a). This study is useful as a determination of the working conditions of the evaporator at a solar assisted high temperature heat pump. The results showed that for the compressor with a maximum working pressure of 25 bar the evaporator temperature maximum allowed for the pressure ratio PR = 3 should not exceed 60 °C, for PR = 2.5 may not exceed the temperature of 67 °C, for PR = 2 should not exceed 78 °C, and PR = 1.5 the maximum allowable evaporator temperature can reach 90 °C. The coefficient of performance (COP), heat pumps will be smaller if the evaporator temperature and pressure ratio increase. There is a polynomial relationship between the evaporator temperature, pressure ratio and COP of the heat pump. Keywords: heat pump, high temperature, heat input, pressure ratio, performance, COP

Item Type: Article
Subjects: FAKULTAS TEKNIK > Pendidikan Teknik Mesin
Divisions: FAKULTAS TEKNIK
Depositing User: Amiruddin Amiruddin
Date Deposited: 26 Jul 2023 00:36
Last Modified: 26 Jul 2023 00:36
URI: http://eprints.unm.ac.id/id/eprint/32466

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