.BuildingSystems.Utilities.Psychrometrics.Functions.X_pTphi

Information

Absolute humidity of air for given pressure, temperature and relative humidity.

Note that the absolute humidity is in kg/kg total air, and not dry air.

Interface

function X_pTphi
  extends Modelica.Icons.Function;
  input Modelica.Units.SI.Pressure p "Absolute pressure of the medium";
  input Modelica.Units.SI.Temperature T "Dry bulb temperature";
  input Real phi(unit = "1") "Relative humidity";
  output Modelica.Units.SI.MassFraction X_w "Water vapor mass fraction per unit mass total air";
end X_pTphi;

Revisions

• April 4, 2019 by Filip Jorissen:
  First implementation.