Heat pump is a device that transfers heat from a colder area to a hotter area by using mechanical energy, as in a refrigerator. In heat pump how much heat is rejected at higher temperature is an important quantity.
Coefficient of performance of Heat Pump
A refrigerator is a device which is designed to remove heat from a space that is at lower temperature than its surroundings. In refrigerator heat extracted from lower temperature is an important quantity.
Coefficient of performance of Refrigerator
From [ (1) – (2) ] we get :-
∴ (COP)H = 1 + (COP)R
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