Buildings.Fluid.HeatExchangers.CoolingTowers.Correlations.Examples
Collection of models that illustrate model use and test models
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
Example for yorkCalc correlation
Information
Validation model that plots the approach temperature based on the York model for different ratios of water and air flow rates.
Extends from Modelica.Icons.Example (Icon for runnable examples).
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.Units.SI.TemperatureDifference TRan=5.56
"Range temperature (water in - water out)";
parameter Modelica.Units.SI.Temperature TAirInWB=25.55 + 273.15
"Inlet air wet bulb temperature";
Modelica.Units.SI.MassFraction x "Independent variable";
Modelica.Units.SI.TemperatureDifference TApp_Wat
"Approach temperature as a function of FRWat";
Modelica.Units.SI.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;