COP — Refrigerator / Heat Pump Calculator

Coefficient of performance

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COP — Refrigerator / Heat Pump

Coefficient of performance

$$COP_{ref}=\dfrac{T_C}{T_H-T_C}\quad COP_{hp}=\dfrac{T_H}{T_H-T_C}$$

Carnot (maximum) COPs. Real systems achieve 40–60% of these. $COP_{hp}=COP_{ref}+1$ always.

T_H (K)

T_C (K)

T_H must be greater than T_C.

COP (Ref / Heat Pump)

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