Psychrometric Properties: STD ATM
-15.0 10 to -15.0 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 | -15.0 10 | -41.32 | -15 | -14.839 | 0.000101 | 10 | 0.7314 | ASHRAE Fundamentals 2017 Ch.1 | -16.13 |
| STD ATM | -15.0 100 | -16.78 | -15 | -12.577 | 0.001016 | 100 | 0.7325 | ASHRAE Fundamentals 2017 Ch.1 | -15.24 |
| STD ATM | -15.0 20 | -34.51 | -15 | -14.588 | 0.000203 | 20 | 0.7315 | ASHRAE Fundamentals 2017 Ch.1 | -14.88 |
| STD ATM | -15.0 30 | -30.31 | -15 | -14.337 | 0.000305 | 30 | 0.7317 | ASHRAE Fundamentals 2017 Ch.1 | -15.65 |
| STD ATM | -15.0 40 | -27.23 | -15 | -14.086 | 0.000406 | 40 | 0.7318 | ASHRAE Fundamentals 2017 Ch.1 | -16.15 |
| STD ATM | -15.0 50 | -24.77 | -15 | -13.834 | 0.000508 | 50 | 0.7319 | ASHRAE Fundamentals 2017 Ch.1 | -16.4 |
| STD ATM | -15.0 60 | -22.73 | -15 | -13.583 | 0.000609 | 60 | 0.732 | ASHRAE Fundamentals 2017 Ch.1 | -16.45 |
| STD ATM | -15.0 70 | -20.97 | -15 | -13.332 | 0.000711 | 70 | 0.7321 | ASHRAE Fundamentals 2017 Ch.1 | -16.33 |
| STD ATM | -15.0 80 | -19.42 | -15 | -13.08 | 0.000813 | 80 | 0.7323 | ASHRAE Fundamentals 2017 Ch.1 | -16.07 |
| STD ATM | -15.0 90 | -18.03 | -15 | -12.828 | 0.000914 | 90 | 0.7324 | ASHRAE Fundamentals 2017 Ch.1 | -15.71 |
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