Psychrometric Properties: ALT 2250M
45.0 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 | 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 | 45.0 10 | 2,250 | 77,058 | 6.39 | 45 | 65.535 | 0.00784 | 10 | 1.2001 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 21.39 |
| ALT 2250M | 45.0 30 | 2,250 | 77,058 | 23.43 | 45 | 107.638 | 0.02413 | 30 | 1.2311 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 29.69 |
| ALT 2250M | 45.0 50 | 2,250 | 77,058 | 32.18 | 45 | 151.976 | 0.041284 | 50 | 1.2638 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 35.19 |
| ALT 2250M | 45.0 70 | 2,250 | 77,058 | 38.26 | 45 | 198.734 | 0.059374 | 70 | 1.2982 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 39.57 |
| ALT 2250M | 45.0 90 | 2,250 | 77,058 | 42.98 | 45 | 248.113 | 0.078478 | 90 | 1.3346 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 43.39 |
| ALT 2250M | 5.0 10 | 2,250 | 77,058 | -24.17 | 5 | 6.8 | 0.000705 | 10 | 1.0373 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | -1.72 |
| ALT 2250M | 5.0 30 | 2,250 | 77,058 | -11.15 | 5 | 10.351 | 0.00212 | 30 | 1.0396 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | -0.51 |
| ALT 2250M | 5.0 50 | 2,250 | 77,058 | -4.56 | 5 | 13.919 | 0.003541 | 50 | 1.042 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 0.8 |
| ALT 2250M | 5.0 70 | 2,250 | 77,058 | 0 | 5 | 17.503 | 0.004969 | 70 | 1.0444 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 2.31 |
| ALT 2250M | 5.0 90 | 2,250 | 77,058 | 3.51 | 5 | 21.103 | 0.006403 | 90 | 1.0468 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 3.99 |
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