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Refrigerant-134a enters the compressor of a refrigerator as superheated vapor a

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor a

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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please provide full calculations thank you

2. Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.20 MPa and -5°C at a rate of 0.07 kg/s, and it leaves at 1.2 MPa and 70°C. The refrigerant is cooled in the condenser to 44°C and 1.15 MPa, and it is throttled to 0.21 MPa. Disregarding any heat transfer and pressure drops in the connecting lines between the components, show the cycle on a T-s diagram with respect to saturation lines, and determine (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 COP of the refrigerator.
Transcribed Image Text:2. Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.20 MPa and -5°C at a rate of 0.07 kg/s, and it leaves at 1.2 MPa and 70°C. The refrigerant is cooled in the condenser to 44°C and 1.15 MPa, and it is throttled to 0.21 MPa. Disregarding any heat transfer and pressure drops in the connecting lines between the components, show the cycle on a T-s diagram with respect to saturation lines, and determine (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 COP of the refrigerator.
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