functionX_pW

Humidity ratio for given water vapor pressure

Extends from Modelica.Icons.Function.

Information

Function to compute the humidity ratio for a given water vapor partial pressure.

Inputs

TypeNameDefaultDescription
Modelica.SIunits.Pressurep_wWater vapor pressure
Modelica.SIunits.Pressurep101325Total pressure

Outputs

TypeNameDefaultDescription
Modelica.SIunits.MassFractionX_wSpecies concentration at dry bulb temperature

Revisions

  • September 16, 2013 by Michael Wetter:
    Added attributes to variable p_w.
  • March 9, 2012 by Michael Wetter:
    Added smoothOrder=99 and displayUnit for pressure.
  • February 17, 2010 by Michael Wetter:
    Renamed block from HumidityRatio_pWat to X_pW.
  • April 14, 2009 by Michael Wetter:
    Converted model to block because RealInput are obsolete in Modelica 3.0.
  • August 7, 2008 by Michael Wetter:
    First implementation.