Psychrometric Properties: STD ATM
-51.0 100 to -60.0 100
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 | Pr da | Pr s | Ws kg kg (kg/kg) | cp da kJ kgK (kJ/(kg·K)) | cp s kJ kgK (kJ/(kg·K)) | dry bulb C (C) | hda kJ kg (kJ/kg) | hs kJ kg (kJ/kg) | lambda da W mK (W/(m·K)) | lambda s W mK (W/(m·K)) | mu da uPas (uPa·s) | mu s uPas (uPa·s) | nu da 1e6m2 s (1e-6 m2/s) | nu s 1e6m2 s (1e-6 m2/s) | relative humidity pct (%) | rho da kg m3 (kg/m3) | rho s kg m3 (kg/m3) | sda kJ kgdaK (kJ/(kg·K)) | ss kJ kgdaK (kJ/(kg·K)) | vda m3 kg (m3/kg) | vs m3 kg (m3/kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STD ATM | -51.0 100 | 0.7202 | 0.7203 | 0.000022 | 1.0059 | 1.0059 | -51 | -51.287 | -51.235 | 0.02033 | 0.02033 | 14.56 | 14.56 | 9.148 | 9.148 | 100 | 1.592 | 1.592 | -0.2078 | -0.2076 | 0.6283 | 0.6283 |
| STD ATM | -52.0 100 | 0.7205 | 0.7205 | 0.000019 | 1.006 | 1.006 | -52 | -52.293 | -52.247 | 0.02025 | 0.02025 | 14.51 | 14.51 | 9.073 | 9.073 | 100 | 1.599 | 1.599 | -0.2124 | -0.2121 | 0.6255 | 0.6255 |
| STD ATM | -53.0 100 | 0.7207 | 0.7207 | 0.000017 | 1.006 | 1.006 | -53 | -53.299 | -53.258 | 0.02017 | 0.02017 | 14.45 | 14.45 | 8.997 | 8.997 | 100 | 1.606 | 1.606 | -0.2169 | -0.2167 | 0.6226 | 0.6226 |
| STD ATM | -54.0 100 | 0.7209 | 0.7209 | 0.000015 | 1.006 | 1.006 | -54 | -54.305 | -54.269 | 0.02009 | 0.02009 | 14.4 | 14.4 | 8.923 | 8.923 | 100 | 1.613 | 1.613 | -0.2215 | -0.2213 | 0.6198 | 0.6198 |
| STD ATM | -55.0 100 | 0.7211 | 0.7211 | 0.000013 | 1.006 | 1.0061 | -55 | -55.311 | -55.28 | 0.02001 | 0.02001 | 14.34 | 14.34 | 8.848 | 8.848 | 100 | 1.621 | 1.621 | -0.2261 | -0.226 | 0.6169 | 0.6169 |
| STD ATM | -56.0 100 | 0.7214 | 0.7214 | 0.000011 | 1.0061 | 1.0061 | -56 | -56.317 | -56.289 | 0.01993 | 0.01993 | 14.29 | 14.29 | 8.773 | 8.773 | 100 | 1.628 | 1.628 | -0.2307 | -0.2306 | 0.6141 | 0.6141 |
| STD ATM | -57.0 100 | 0.7216 | 0.7216 | 0.00001 | 1.0061 | 1.0061 | -57 | -57.323 | -57.299 | 0.01984 | 0.01984 | 14.23 | 14.23 | 8.699 | 8.699 | 100 | 1.636 | 1.636 | -0.2354 | -0.2353 | 0.6112 | 0.6112 |
| STD ATM | -58.0 100 | 0.7218 | 0.7218 | 0.000009 | 1.0061 | 1.0061 | -58 | -58.329 | -58.308 | 0.01976 | 0.01976 | 14.18 | 14.18 | 8.625 | 8.625 | 100 | 1.644 | 1.644 | -0.24 | -0.2399 | 0.6084 | 0.6084 |
| STD ATM | -59.0 100 | 0.722 | 0.7221 | 0.000008 | 1.0062 | 1.0062 | -59 | -59.335 | -59.317 | 0.01968 | 0.01968 | 14.12 | 14.12 | 8.552 | 8.552 | 100 | 1.651 | 1.651 | -0.2447 | -0.2446 | 0.6055 | 0.6055 |
| STD ATM | -60.0 100 | 0.7223 | 0.7223 | 0.000007 | 1.0062 | 1.0062 | -60 | -60.341 | -60.325 | 0.0196 | 0.0196 | 14.07 | 14.07 | 8.478 | 8.478 | 100 | 1.659 | 1.659 | -0.2494 | -0.2494 | 0.6027 | 0.6027 |
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