.Buildings.Fluid.HeatExchangers.CoolingTowers.Correlations.yorkCalc

Information

Correlation for approach temperature for YorkCalc cooling tower model. See Buildings.Fluid.HeatExchangers.CoolingTowers.Correlations.Examples.YorkCalc for the graph.

Interface

function yorkCalc
  input Modelica.Units.SI.TemperatureDifference TRan "Range temperature (water in - water out)" annotation(
    Dialog(group = "Nominal condition"));
  input Modelica.Units.SI.Temperature TWetBul "Air wet-bulb inlet temperature";
  input Modelica.Units.SI.MassFraction FRWat "Ratio actual over design water mass flow ratio";
  input Modelica.Units.SI.MassFraction FRAir "Ratio actual over design air mass flow ratio";
  output Modelica.Units.SI.TemperatureDifference TApp "Approach temperature";
end yorkCalc;

Revisions

• July 12, 2011, by Michael Wetter:
  Added smoothMax function to prevent division by zero.
• May 14, 2008, by Michael Wetter:
  First implementation.