GATE ME 2020 Set 2 — Question 35
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Thermodynamics → Refrigeration & Air Conditioning → Coefficient of Performance
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Question
If a reversed Carnot cycle operates between the temperature limits of and , then the ratio of the COP of a refrigerator to that of a heat pump (COP of refrigerator / COP of heat pump) based on the cycle is ________ (round off to 2 decimal places).
Correct answer
0.89 to 0.91
Solution
For a reversed Carnot cycle:
Coefficient of Performance (COP) of a refrigerator:Coefficient of Performance (COP) of a heat pump:The ratio is:
Coefficient of Performance (COP) of a refrigerator:Coefficient of Performance (COP) of a heat pump:The ratio is:
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