【摘 要】
：
Theoretical and experimental analysis of a new refrigerant mixture BY-3 was conducted based on a singlestage vapor compression refrigeration system.The water-wa
【机 构】
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School of Environmental Science and Engineering
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Theoretical and experimental analysis of a new refrigerant mixture BY-3 was conducted based on a singlestage vapor compression refrigeration system.The water-water heat pump system used BY-3 to produce hot water when the low temperature was 20 ℃.The following results were obtained:the highest temperature at the condenser outlet reached about 85 ℃; when the difference between the water temperatures at the condenser outlet and the evaporator inlet was less than 40 ℃,the coefficient of performance (COP) was larger than 4; when the difference reached 55 ℃,the COP still kept 3; the discharge temperature of BY-3 was lower than 100 ℃,and the refrigerant vapor pressure kept lower than 1.8 MPa.When the water temperature at the condenser outlet reached over 85 ℃,nearly a 5 ℃ superheating temperature was maintained.
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