Maximum possible cooling COP for a given evaporator and condenser temperature pair. Real cycles achieve 35–65 % of this.
Formula
$$ \text{COP}\text{Carnot} = \frac{T\text{cold}}{T_\text{hot} - T_\text{cold}} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $T_\text{cold}$ | Evaporator temperature | K | T_evap + 273.15 |
| $T_\text{hot}$ | Condenser temperature | K | T_cond + 273.15 |
Sources
- Cengel & Boles - Thermodynamics.