Psychrometric Properties: ALT 2250M
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 2250M | 15.0 10 | 2,250 | 77,058 | -16.41 | 15 | 18.579 | 0.00138 | 10 | 1.0757 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 4.07 |
| ALT 2250M | 15.0 30 | 2,250 | 77,058 | -2.42 | 15 | 25.603 | 0.004157 | 30 | 1.0805 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 7.04 |
| ALT 2250M | 15.0 50 | 2,250 | 77,058 | 4.69 | 15 | 32.69 | 0.006959 | 50 | 1.0854 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 9.4 |
| ALT 2250M | 15.0 70 | 2,250 | 77,058 | 9.6 | 15 | 39.84 | 0.009787 | 70 | 1.0903 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 11.62 |
| ALT 2250M | 15.0 90 | 2,250 | 77,058 | 13.4 | 15 | 47.056 | 0.01264 | 90 | 1.0952 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 13.84 |
| ALT 2250M | 20.0 10 | 2,250 | 77,058 | -12.56 | 20 | 24.926 | 0.001893 | 10 | 1.0953 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 6.96 |
| ALT 2250M | 20.0 30 | 2,250 | 77,058 | 1.92 | 20 | 34.626 | 0.005715 | 30 | 1.102 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 10.82 |
| ALT 2250M | 20.0 50 | 2,250 | 77,058 | 9.3 | 20 | 44.446 | 0.009584 | 50 | 1.1088 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 13.7 |
| ALT 2250M | 20.0 70 | 2,250 | 77,058 | 14.4 | 20 | 54.387 | 0.013501 | 70 | 1.1157 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 16.28 |
| ALT 2250M | 20.0 90 | 2,250 | 77,058 | 18.35 | 20 | 64.453 | 0.017466 | 90 | 1.1227 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 18.77 |
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