A refrigerator uses refrigerant R-134a as the working fluid and operates on an ideal vapor- compression refrigeration cycle between 0.2 and 0.6 MPa .The mass flow rate of the refrigerant is 0.8 kg/ s .Show the cycle on a T-s diagram and Determine : a- the rate of heat removal from the refrigerated space and the power input to the compressor. b- The rate of heat rejection to the environment. c- The coefficient of performance.

A refrigerator uses refrigerant R-134a as the working fluid and operates on an ideal vapor- compression refrigeration cycle between 0.2 and 0.6 MPa .The mass flow rate of the refrigerant is 0.8 kg/ s .Show the cycle on a T-s diagram and Determine : a- the rate of heat removal from the refrigerated space and the power input to the compressor. b- The rate of heat rejection to the environment. c- The coefficient of performance.

Name: A refrigerator uses refrigerant R-134a as the working fluid and opera
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Description: A refrigerator uses refrigerant R-134a as the working fluid and operates on an ideal vapor-compression refrigeration cycle between 0.2 and 0.6 MPa .The mass flow rate of therefrigerant is 0.8 kg/ s .Show the cycle on a T-s diagram and Determine :a-

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

Chapter28: Special Refrigeration Applications

Section: Chapter Questions

Problem 15RQ: Why is two-stage compression popular for extra-low-temperature refrigeration systems?

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