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A refrigerator using R-134a is located in a 20°C room. Consider the cycle to be ideal. Saturated vapor at -10°C enters the compressor, and the R-134a exits the compressor at 50°C for 1 MPa compressor pressure. The condenser temperature is 40°C. The mass flow rate of refrigerant around the cycle is 0.2 kg/s, and the coefficient of performance is measured and found to be 2.3. Find the power input to the compressor and the rate of entropy generation  in the compressor process

A refrigerator using R-134a is located in a 20°C room. Consider the cycle to be ideal. Saturated vapor at -10°C enters the compressor, and the R-134a exits the compressor at 50°C for 1 MPa compressor pressure. The condenser temperature is 40°C. The mass flow rate of refrigerant around the cycle is 0.2 kg/s, and the coefficient of performance is measured and found to be 2.3. Find the power input to the compressor and the rate of entropy generation  in the compressor process

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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A refrigerator using R-134a is located in a 20°C room. Consider the cycle to be ideal. Saturated
vapor at -10°C enters the compressor, and the R-134a exits the compressor at 50°C for 1 MPa
compressor pressure. The condenser temperature is 40°C. The mass flow rate of refrigerant around
the cycle is 0.2 kg/s, and the coefficient of performance is measured and found to be 2.3. Find the
power input to the compressor and the rate of entropy generation  in the compressor
process

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