Just to check the answer no need calculation a)The rate of heat removal from the refrigerated space and the power input to the compressor,b)The isentropic efficiency of the compressor, andc)The coefficient of performance of the refrigerator. Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 MPa and -10 °C at rate of 0.05 kg/s and leaves at 0.7 MPa and 50 °C. The refrigerantis cooled in the condenser to 21.6 °C and 0.6 MPa and is throttled to 0.15 MPa. Disregarding any heat transfer and pressure drops in the connecting lines between thecomponents, determine:

(a) Write the enthalpy and entropy of the refrigerant as superheated vapor from the superheated…

a) The rate of heat removal from the refrigerated space and the power input to the compressor, b) The isentropic efficiency of the compressor, and c) The coefficient of performance of the refrigerator.

a) The rate of heat removal from the refrigerated space and the power input to the compressor, b) The isentropic efficiency of the compressor, and c) The coefficient of performance of the refrigerator.

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 13RQ: Condensers in these refrigerators are all_______cooled.

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