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김재돌,성광훈,정석권,윤정인,이호생,Kim, Jae-Dol,Seong, Gwang-Hoon,Jeong, Seok-Kwon,Yoon, Jung-In,Lee, Ho-Saeng 한국마린엔지니어링학회 2006 한국마린엔지니어링학회지 Vol.30 No.2
This study presents heat pump system characteristics using hydrocarbon refrigerants as alternative refrigerant for R-22 with respect to the variation of indoor load. Pure R-22 and R-290. R-600a, R-1270 were considered as working fluids The experimental apparatus was constructed to investigate the performance of heat pump using the air as a heat source. The performance were calculated based on compression shaft work. refrigeration capacity. pressure ratio, discharge temperature and COP. The experimental results show that the COP and refrigeration capacity of hydrocarbon refrigerants were higher than that of R-22. Through the above. hydrocarbon refrigerants are good alternatives in the heat pump system for R-22.