Exergetic Investigation of the Effects of Superheating and Subcooling on Performance of a Vapor Compression Refrigeration Cycle
Küçük Resim Yok
Tarih
2020
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Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The aim of this study is to investigate the effects of superheating and subcooling values on the coolingperformance of a vapor compression refrigeration cycle. For this purpose, a refrigeration cycle with coolingcapacity of 8 kW using R404A was examined by changing superheating and subcooling values. Energy, exergyand entropy balances were applied for evaporation and condensation temperatures of 0? and 45?, respectively.The coefficient of cooling performance (COP), the amount of energy transfer, rate of exergy destruction andrational exergy efficiency of each components (evaporator, compressor, condenser and expansion valve) andthe whole system were determined. The compressor work, coefficient of performance and second law efficiencyincreased by 0.7%, 1.61% and 1.56%, respectively, per one-degree increment of superheating in the evaporator.
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Kaynak
European Mechanical Science
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Scopus Q Değeri
Cilt
4
Sayı
4
