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암모니아와 프레온을 사용한 냉동장치의 성능에 관한 연구
이승재(Seung-Jae Lee),하옥남(Ok-Nam Ha),정송태(Song-Tae Jeong),하경수(Kyeong-Soo Ha) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
Nowadays HCFCs refrigerant are restricted because it cause depletion of ozone layer. However, natural gases such as ammonia as an organic compound, propane and propylene as hydrocarbon are easy and cheap to obtain as well as environmental. Accordingly, this experiment apply the NH3 and R22 to study the performance characteristic from the superheat control and compare the energy efficiency of two refrigerants from the high performance. The condensing pressure of refrigeration system is increased from 15bar to 16bar and degree of superheat is increased from 0 to 10℃ at each condensing pressure. As the result of experiment, when comparing the each COP, we knew the NH3 is suitable as the alternative refrigerant of the R22.
열교환기 구조 변화에 따른 NH₃와 R22의 성능특성연구
하옥남,하경수,이승재,정송태 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-
Nowadays HCFCs refrigerant are restricted because it cause depletion of ozone layer. However, natural gases such as ammonia as an organic compound, propane and propylene as hydrocarbon are easy and cheap to obtain as well as environmental. Accordingly, this experiment apply the NH3 and R22 to study the performance characteristic from the superheat control and compare the energy efficiency of two refrigerants from the high performance. The condensing pressure of refrigeration system is increased from 15bar to 16bar and degree of superheat is increased from 0 to 10℃ at each condensing pressure. As the result of experiment, when comparing the each COP, we knew the NH₃ is suitable as the alternative refrigerant of the R22.