In Bell Colemann refrigerator for the same temperature range – McqOptions

MCQOPTIONS

1.	In Bell Colemann refrigerator for the same temperature range
A.	COP of dense air system is equal to COP of open air system
B.	COP of dense air system is lower than COP of open air system
C.	COP of dense air system is higher than COP of open air system
D.	COP of dense air system may be higher or lower than COP of open air system depending upon pressure ratio.
Answer» D. COP of dense air system may be higher or lower than COP of open air system depending upon pressure ratio.

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