Psychrometric Properties: ALT 3000M
15.0 10 to 20.0 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 | altitude m (m) | atmospheric pressure Pa (Pa) | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ALT 3000M | 15.0 10 | 3,000 | 70,117 | -16.41 | 15 | 18.925 | 0.001516 | 10 | 1.1825 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 4.07 |
| ALT 3000M | 15.0 30 | 3,000 | 70,117 | -2.42 | 15 | 26.651 | 0.004572 | 30 | 1.1883 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 7.04 |
| ALT 3000M | 15.0 50 | 3,000 | 70,117 | 4.69 | 15 | 34.453 | 0.007657 | 50 | 1.1941 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 9.4 |
| ALT 3000M | 15.0 70 | 3,000 | 70,117 | 9.6 | 15 | 42.333 | 0.010773 | 70 | 1.2 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 11.62 |
| ALT 3000M | 15.0 90 | 3,000 | 70,117 | 13.4 | 15 | 50.291 | 0.013919 | 90 | 1.206 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 13.84 |
| ALT 3000M | 20.0 10 | 3,000 | 70,117 | -12.56 | 20 | 25.403 | 0.002081 | 10 | 1.2041 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 6.96 |
| ALT 3000M | 20.0 30 | 3,000 | 70,117 | 1.92 | 20 | 36.076 | 0.006287 | 30 | 1.2122 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 10.82 |
| ALT 3000M | 20.0 50 | 3,000 | 70,117 | 9.3 | 20 | 46.895 | 0.010549 | 50 | 1.2204 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 13.7 |
| ALT 3000M | 20.0 70 | 3,000 | 70,117 | 14.4 | 20 | 57.86 | 0.014869 | 70 | 1.2288 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 16.28 |
| ALT 3000M | 20.0 90 | 3,000 | 70,117 | 18.35 | 20 | 68.977 | 0.019249 | 90 | 1.2372 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 18.77 |
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