3. A refrigerator uses refrigerant -134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for compression process. The refrigerant enters the evaporator at 120 kPa wit a quality of 34 % and leaves the compressor at 70 °C. If the compressor consumes 450 W of power, determine: a) The mass flow rate of the refrigerant, b) The condenser pressure, c) COP of the refrigerator, Expansion valve 120 kPa x = 0.34 2H Condenser Evaporator Warm environment Cold 70°C in Compressor environment

3. A refrigerator uses refrigerant -134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for compression process. The refrigerant enters the evaporator at 120 kPa wit a quality of 34 % and leaves the compressor at 70 °C. If the compressor consumes 450 W of power, determine: a) The mass flow rate of the refrigerant, b) The condenser pressure, c) COP of the refrigerator, Expansion valve 120 kPa x = 0.34 2H Condenser Evaporator Warm environment Cold 70°C in Compressor environment

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

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 2RQ: The operating condition for the single compressor in a household refrigerator is the lowest box...

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