Psychrometric Properties: STD ATM
5.0 10 to 5.0 90
Psychrometric properties of moist air — humidity ratio, enthalpy, dew point, wet-bulb temperature, and specific volume as functions of dry-bulb temperature and relative humidity; also includes saturation thermodynamic and transport properties (viscosity, thermal conductivity, Prandtl number, density) from ASHRAE 2021 tabulated data
| pressure condition | lookup key | dew point C (C) | dry bulb C (C) | enthalpy kJ kg (kJ/kg) | humidity ratio kg kg (kg/kg) | relative humidity pct (%) | specific volume m3 kg (m3/kg) | standard | wet bulb C (C) |
|---|---|---|---|---|---|---|---|---|---|
| STD ATM | 5.0 10 | -24.17 | 5 | 6.376 | 0.000536 | 10 | 0.7886 | ASHRAE Fundamentals 2017 Ch.1 | -1.72 |
| STD ATM | 5.0 100 | 5.02 | 5 | 18.59 | 0.005402 | 100 | 0.7948 | ASHRAE Fundamentals 2017 Ch.1 | 4.9 |
| STD ATM | 5.0 20 | -16.13 | 5 | 7.723 | 0.001073 | 20 | 0.7893 | ASHRAE Fundamentals 2017 Ch.1 | -1.12 |
| STD ATM | 5.0 30 | -11.15 | 5 | 9.074 | 0.001611 | 30 | 0.79 | ASHRAE Fundamentals 2017 Ch.1 | -0.51 |
| STD ATM | 5.0 40 | -7.48 | 5 | 10.426 | 0.00215 | 40 | 0.7907 | ASHRAE Fundamentals 2017 Ch.1 | 0.12 |
| STD ATM | 5.0 50 | -4.56 | 5 | 11.781 | 0.002689 | 50 | 0.7914 | ASHRAE Fundamentals 2017 Ch.1 | 0.8 |
| STD ATM | 5.0 60 | -2.11 | 5 | 13.138 | 0.00323 | 60 | 0.7921 | ASHRAE Fundamentals 2017 Ch.1 | 1.53 |
| STD ATM | 5.0 70 | 0 | 5 | 14.498 | 0.003772 | 70 | 0.7927 | ASHRAE Fundamentals 2017 Ch.1 | 2.31 |
| STD ATM | 5.0 80 | 1.85 | 5 | 15.86 | 0.004314 | 80 | 0.7934 | ASHRAE Fundamentals 2017 Ch.1 | 3.13 |
| STD ATM | 5.0 90 | 3.51 | 5 | 17.224 | 0.004858 | 90 | 0.7941 | ASHRAE Fundamentals 2017 Ch.1 | 3.99 |
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