| A | Area over which heat is transferred (m2) |
| cp | Specific Heat at Constant Pressure (kJ/kg·K) |
| h | Enthalpy (kJ/kg) |
| LER | Log Error Ratio (-) |
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Mass flow rate (kg/s) |
| P | Pressure (bar, kPa) |
| PP | Pinch Point (°C, K) |
| Q | Heat Transfer Rate (kW) |
| SE | Standard Error (%) |
| T | Temperature (°C, K) |
| U | Overall Heat Transfer Coefficient (kW/m2·K) |
q Temperature Difference (°C, K)
Subscripts
| c | Cold Stream |
| h | Hot Stream |
| m | Refrigerant Mixture Stream |
| w | Water Stream |