Psychrometric Properties: ALT 2250M
25.0 10 to 30.0 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 | 25.0 10 | 2,250 | 77,058 | -8.73 | 25 | 31.693 | 0.002568 | 10 | 1.1152 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 9.85 |
| ALT 2250M | 25.0 30 | 2,250 | 77,058 | 6.26 | 25 | 44.943 | 0.00777 | 30 | 1.1245 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 14.59 |
| ALT 2250M | 25.0 50 | 2,250 | 77,058 | 13.89 | 25 | 58.416 | 0.013058 | 50 | 1.1339 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 18 |
| ALT 2250M | 25.0 70 | 2,250 | 77,058 | 19.19 | 25 | 72.116 | 0.018436 | 70 | 1.1435 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 20.94 |
| ALT 2250M | 25.0 90 | 2,250 | 77,058 | 23.28 | 25 | 86.051 | 0.023906 | 90 | 1.1533 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 23.69 |
| ALT 2250M | 30.0 10 | 2,250 | 77,058 | -4.92 | 30 | 38.991 | 0.003446 | 10 | 1.1355 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 12.74 |
| ALT 2250M | 30.0 30 | 2,250 | 77,058 | 10.57 | 30 | 56.908 | 0.010454 | 30 | 1.1482 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 18.37 |
| ALT 2250M | 30.0 50 | 2,250 | 77,058 | 18.48 | 30 | 75.232 | 0.017621 | 50 | 1.1612 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 22.3 |
| ALT 2250M | 30.0 70 | 2,250 | 77,058 | 23.97 | 30 | 93.976 | 0.024952 | 70 | 1.1745 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 25.6 |
| ALT 2250M | 30.0 90 | 2,250 | 77,058 | 28.22 | 30 | 113.155 | 0.032453 | 90 | 1.1882 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 28.62 |
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