Buildings.Fluid.HeatExchangers.CoolingTowers.Correlations.Examples

Information

This package contains examples for the use of models that can be found in Buildings.Fluid.HeatExchangers.CoolingTowers.Correlations.

Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).

Package Content

Name	Description
YorkCalc	Example for yorkCalc correlation

Buildings.Fluid.HeatExchangers.CoolingTowers.Correlations.Examples.YorkCalc

Information

Parameters

Type	Name	Default	Description
TemperatureDifference	TRan	5.56	Range temperature (water in - water out) [K]
Temperature	TAirInWB	25.55 + 273.15	Inlet air wet bulb temperature [K]

Modelica definition

model YorkCalc "Example for yorkCalc correlation"
  extends Modelica.Icons.Example;

  parameter Modelica.SIunits.TemperatureDifference TRan = 5.56 
    "Range temperature (water in - water out)";
  parameter Modelica.SIunits.Temperature TAirInWB = 25.55 + 273.15 
    "Inlet air wet bulb temperature";
  Modelica.SIunits.MassFraction x "Independent variable";
  Modelica.SIunits.TemperatureDifference TApp_Wat 
    "Approach temperature as a function of FRWat";
  Modelica.SIunits.TemperatureDifference TApp_Air 
    "Approach temperature as a function of FRAir";

equation 
  x = 0.25+time;
  TApp_Wat=Buildings.Fluid.HeatExchangers.CoolingTowers.Correlations.yorkCalc(TRan=TRan,
                                                                    TWetBul=TAirInWB,
                                                                    FRWat=x,
                                                                    FRAir=1);
  TApp_Air=Buildings.Fluid.HeatExchangers.CoolingTowers.Correlations.yorkCalc(TRan=TRan,
                                                                    TWetBul=TAirInWB,
                                                                    FRWat=1,
                                                                    FRAir=x);

end YorkCalc;