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Question

The coefficient of performance is the ratio of the refrigerant effect to the ________.

प्रदर्शन का गुणांक रेफ्रिजरेंट प्रभाव और ________ का अनुपात है।

A. heat of compression

B. work done by compressor

C. enthalpy increases in compressor

A.

Only A

B.

Only B

C.

Only C            

D.

A, B and C

Answer ( Option D)

A, B and C

Solution

●The coefficient of performance of a refrigerator is the ratio of the refrigerant effect to the work input. It can also be defined as the ratio of heat extracted in the refrigerator to the work done on the refrigerant.

Mathematically,

            

●Work input in form of compression (or compressor work) can also be termed as heat of compression, work done by compressor or enthalpy increases in compressor.

Work done by compressor :


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