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2008年 第2卷 第4期

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《能源前沿（英文）》 >> 2008年 第2卷 第4期 doi: 10.1007/s11708-008-0070-x

New refrigeration system using CO vapor-solid as refrigerant

1.Institute of Refrigeration and Cryogenics Engineering, Shanghai Jiao Tong University; 2.Institute of Refrigeration and Cryogenics Technology, Technical University of Dresden

发布日期： 2008-12-05
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摘要

A refrigerant must be in the vapor-liquid phase in a vapor-compression refrigeration system, therefore, CO cannot be used as a refrigerant for temperatures lower than -56°C because solid CO will form under the triple point temperature of -56°C. A refrigeration system with CO vapor-solid particles as refrigerant is put forward, by which a temperature lower than the triple point is achieved. An adjustable nozzle, a sublimator, a high-pressure regulating valve and a low-pressure regulating valve are used to replace the conventional evaporator. Theoretical cycle analysis of the refrigeration system shows that its COP can be 50% higher than that of the conventional one.

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