Reverse-Carnot COP (Theoretical Limit)

Maximum possible cooling COP for a given evaporator and condenser temperature pair. Real cycles achieve 35–65 % of this.

RefrigerationCarnot

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\text{COP}_\text{Carnot} = \frac{T_\text{cold}}{T_\text{hot} - T_\text{cold}}

Symbol	Meaning	Unit
$T_\text{cold}$	Evaporator temperature	K
$T_\text{hot}$	Condenser temperature	K

Source: Cengel & Boles - Thermodynamics

Maximum possible cooling COP for a given evaporator and condenser temperature pair.