1. Consider a refrigerator that uses refrigerant-134a as its working fluid and operates on the idealvapor-compression refrigeration cycle except that the compression process is non-ideal. Thecondenser is maintained at 900 kPa, and the evaporator at -26°C. Assume that Stream 1 is asaturated vapor and that Stream 3 is a saturated liquid.3WarmenvironmentQHHAMACondenserExpansionvalveEvaporatorJumCold refrigeratedspace2WinCompressora) If the mass flow of the refrigerant is 1.2 kg/s, what is the rate of heat removal from the coldspace? Give your answer to the nearest kW.b) What is the COP of this refrigerator if the compressor has an isentropic efficiency of 87%?

Given:Refrigerant=R134aCondenser pressure, Pc=900 kPaEvaporator temperature, Te=-26oCSaturated vapor…

Consider a refrigerator that uses refrigerant-134a as its working fluid and operates on the ideal vapor-compression refrigeration cycle except that the compression process is non-ideal. The condenser is maintained at 900 kPa, and the evaporator at -26°C. Assume that Stream 1 is a saturated vapor and that Stream 3 is a saturated liquid.

Consider a refrigerator that uses refrigerant-134a as its working fluid and operates on the ideal vapor-compression refrigeration cycle except that the compression process is non-ideal. The condenser is maintained at 900 kPa, and the evaporator at -26°C. Assume that Stream 1 is a saturated vapor and that Stream 3 is a saturated liquid.

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 12RQ: Refrigerators currently being manufactured in the United States are using______as their refrigerant.

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Condensers in these refrigerators are all_______cooled.
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