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

Evaporator temperature°CCondenser temperature°C

Reverse-Carnot COP (max): 4.78 -

Temperature lift: 55.0K

Changing the inputs requires JavaScript. The calculator above shows its default inputs and 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

In short

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

Learn the theory Marine Auxiliary Engines and Generators