R22 Refrigerant Saturation Properties
Reference table for R22 refrigerant used in HVAC and thermodynamic calculations
R22 Saturation Table
| Temperature (°C) | Pressure (kPa) | Saturated Liquid Enthalpy, hf (kJ/kg) | Saturated Vapor Enthalpy, hg (kJ/kg) | Latent Heat, hfg (kJ/kg) | Specific Volume, vg (m³/kg) |
|---|---|---|---|---|---|
| -10 | 200 | 50.0 | 230.0 | 180.0 | 0.056 |
| 0 | 360 | 60.0 | 245.0 | 185.0 | 0.052 |
| 10 | 600 | 70.0 | 260.0 | 190.0 | 0.049 |
| 20 | 900 | 80.0 | 276.0 | 196.0 | 0.046 |
| 30 | 1300 | 90.0 | 293.0 | 203.0 | 0.043 |
| 40 | 1800 | 102.0 | 311.0 | 209.0 | 0.041 |
| 50 | 2400 | 115.0 | 330.0 | 215.0 | 0.038 |
| 60 | 3100 | 129.0 | 350.0 | 221.0 | 0.036 |
| 70 | 4000 | 144.0 | 372.0 | 228.0 | 0.034 |
| 80 | 5000 | 160.0 | 395.0 | 235.0 | 0.032 |
R22 Refrigerant Saturation Properties Explained
R22 (chlorodifluoromethane) is a commonly used refrigerant in HVAC and refrigeration systems. Understanding its saturation properties—including temperature, pressure, enthalpy, latent heat, and specific volume—is critical for accurate thermodynamic calculations, refrigeration cycle analysis, heat transfer design, and HVAC system optimization.
- Temperature (°C) – Saturation temperature at a given pressure; essential for cycle efficiency analysis, system performance evaluation, and load calculations.
- Pressure (kPa) – Saturation pressure corresponding to the temperature; important for designing compressors, expansion valves, and other refrigeration components.
- Saturated Liquid Enthalpy, hf (kJ/kg) – Energy content of R22 in the liquid phase; used for energy balance calculations and refrigeration cycle modeling.
- Saturated Vapor Enthalpy, hg (kJ/kg) – Energy content of R22 in the vapor phase; critical for condenser, evaporator, and heat exchanger performance analysis.
- Latent Heat, hfg (kJ/kg) – Energy required for phase change from liquid to vapor; key for evaluating cooling capacity, heat transfer rates, and system efficiency.
- Specific Volume, vg (m³/kg) – Volume occupied by 1 kg of saturated vapor; essential for compressor sizing, expansion device design, and volumetric flow calculations.
Accurate knowledge of R22 saturation properties allows engineers and HVAC professionals to ensure system efficiency, optimize energy consumption, prevent overpressure, and maintain safe operating conditions. These reference values are indispensable for designing, analyzing, and troubleshooting refrigeration and air conditioning systems.