Exergetic Investigation of the Effects of Superheating and Subcooling on Performance of a Vapor Compression Refrigeration Cycle

Authors : İbrahim KARAÇAYLI, Erdoğan ŞİMŞEK

Pages : 152-157

Doi:10.26701/ems.742973

View : 16 | Download : 6

Publication Date : 2020-12-20

Article Type : Research Paper

Abstract :The aim of this study is to investigate the effects of superheating and subcooling values on the cooling performance of a vapor compression refrigeration cycle. For this purpose, a refrigeration cycle with cooling capacity of 8 kW using R404A was examined by changing superheating and subcooling values. Energy, exergy and entropy balances were applied for evaporation and condensation temperatures of 0℃ and 45℃, respectively. In order to evaluate the performance of the refrigeration cycle, coefficient of performance insert ignore into journalissuearticles values(COP); for cooling, the amount of energy transfer, rate of exergy destruction and rational exergy efficiency of the all components insert ignore into journalissuearticles values(evaporator, compressor, condenser and expansion valve); and the whole system were determined.
Keywords : Exergy, Exergy destruction, Refrigeration cycle, Superheating, Subcooling