Psychrometric Properties: ALT 3000M
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 3000M | 25.0 10 | 3,000 | 70,117 | -8.73 | 25 | 32.344 | 0.002824 | 10 | 1.2261 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 9.85 |
| ALT 3000M | 25.0 30 | 3,000 | 70,117 | 6.26 | 25 | 46.929 | 0.008549 | 30 | 1.2373 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 14.59 |
| ALT 3000M | 25.0 50 | 3,000 | 70,117 | 13.89 | 25 | 61.785 | 0.014381 | 50 | 1.2488 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 18 |
| ALT 3000M | 25.0 70 | 3,000 | 70,117 | 19.19 | 25 | 76.917 | 0.020321 | 70 | 1.2604 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 20.94 |
| ALT 3000M | 25.0 90 | 3,000 | 70,117 | 23.28 | 25 | 92.335 | 0.026373 | 90 | 1.2723 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 23.69 |
| ALT 3000M | 30.0 10 | 3,000 | 70,117 | -4.92 | 30 | 39.868 | 0.003789 | 10 | 1.2486 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 12.74 |
| ALT 3000M | 30.0 30 | 3,000 | 70,117 | 10.57 | 30 | 59.603 | 0.011508 | 30 | 1.264 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 18.37 |
| ALT 3000M | 30.0 50 | 3,000 | 70,117 | 18.48 | 30 | 79.831 | 0.019419 | 50 | 1.2798 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 22.3 |
| ALT 3000M | 30.0 70 | 3,000 | 70,117 | 23.97 | 30 | 100.571 | 0.027531 | 70 | 1.296 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 25.6 |
| ALT 3000M | 30.0 90 | 3,000 | 70,117 | 28.22 | 30 | 121.842 | 0.03585 | 90 | 1.3126 | ASHRAE Fundamentals 2021 Ch.1; ISA pressures per ICAO Doc 7488/3 | 28.62 |
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