WOLFRAM SYSTEM MODELER
s_pTXReturn specific entropy of moist air as a function of pressure p, temperature T and composition X (only valid for phi<1) |
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SystemModel["Modelica.Media.Air.MoistAir.s_pTX"]

This information is part of the Modelica Standard Library maintained by the Modelica Association.
Specific entropy of moist air is computed from pressure, temperature and composition with X[1] as the total water mass fraction.| p |
Type: Pressure (Pa) Description: Pressure |
|---|---|
| T |
Type: Temperature (K) Description: Temperature |
| X |
Type: MassFraction[:] Description: Mass fractions of moist air |
| s |
Type: SpecificEntropy (J/(kg⋅K)) Description: Specific entropy at p, T, X |
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2012-01-12 Stefan Wischhusen: Initial Release.
2019-05-14 Stefan Wischhusen: Corrected calculation.
2019-09-10 Stefan Wischhusen: Corrected pressure influence (p < p_ref).