2. A vapor-compression refrigeration system operates on throttling expansion. The refrigerant is tetrafluoroethane. For the following sets of operating conditions, determine the circulation rate of the refrigerant, the heat-transfer rate in the condenser, the power requirement, the coefficient of perfomance of the cycle, and the coefficient of performance of a Carnot refrigeration cycle operating between the same temperature levels. Evaporation T/t = 272.15 K (-1°C); condensation T/t = 300.15 K (27°C); n compressor -0.79; refrigeration rate 633 kW.

2. A vapor-compression refrigeration system operates on throttling expansion. The refrigerant is tetrafluoroethane. For the following sets of operating conditions, determine the circulation rate of the refrigerant, the heat-transfer rate in the condenser, the power requirement, the coefficient of perfomance of the cycle, and the coefficient of performance of a Carnot refrigeration cycle operating between the same temperature levels. Evaporation T/t = 272.15 K (-1°C); condensation T/t = 300.15 K (27°C); n compressor -0.79; refrigeration rate 633 kW.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter3: Refrigeration And Refrigerants

Section: Chapter Questions

Problem 2RQ: What are the approximate temperature ranges tor low-, medium-, and high-temperature refrigeration...

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