.Buildings.Utilities.Psychrometrics.Functions.saturationPressure

Information

Saturation pressure of water, computed from temperature, according to Wagner et al. (1993). The range of validity is between 190 and 373.16 Kelvin.

References

Wagner W., A. Saul, A. Pruss. International equations for the pressure along the melting and along the sublimation curve of ordinary water substance, equation 3.5. 1993. http://aip.scitation.org/doi/pdf/10.1063/1.555947?class=pdf.

Interface

function saturationPressure
  extends Modelica.Icons.Function;
  input Modelica.Units.SI.Temperature TSat(displayUnit = "degC", nominal = 300) "Saturation temperature";
  output Modelica.Units.SI.AbsolutePressure pSat(displayUnit = "Pa", nominal = 1000) "Saturation pressure";
end saturationPressure;

Revisions

• March 15, 2016, by Michael Wetter:
  Replaced spliceFunction with regStep. This is for issue 300.
• August 19, 2015 by Michael Wetter:
  Changed smoothOrder from 5 to 1 as Buildings.Utilities.Math.Functions.spliceFunction is only once continuously differentiable. Inlined the function.
• November 20, 2013 by Michael Wetter:
  First implementation, moved from Buildings.Media.