Buildings.Fluid.Sensors.Conversions
Package with conversions for sensor models
Information
This package contains models to convert sensor output.Extends from Modelica.Icons.Package (Icon for standard packages).
Package Content
| Name | Description |
|---|---|
 To_VolumeFraction
|
Conversion from mass fraction to volume fraction |
 Examples
|
Collection of models that illustrate model use and test models |
Buildings.Fluid.Sensors.Conversions.To_VolumeFraction
Conversion from mass fraction to volume fraction
Information
This component converts mass fraction to volume fraction for an ideal gas.
The default value for the parameter MMBul
assumes that the bulk medium is air.
The model assumes that the concentration
of the measured substance is small enough to be neglected in the molar mass
of the mixture.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| MolarMass | MMMea | Molar mass of measured substance [kg/mol] | |
| MolarMass | MMBul | Modelica.Media.IdealGases.Co... | Molar mass of bulk medium [kg/mol] |
Connectors
| Type | Name | Description |
|---|---|---|
| input RealInput | m | Mass fraction |
| output RealOutput | V | Volume fraction |
Modelica definition
model To_VolumeFraction
"Conversion from mass fraction to volume fraction"
parameter Modelica.SIunits.MolarMass MMMea "Molar mass of measured substance";
parameter Modelica.SIunits.MolarMass MMBul=Modelica.Media.IdealGases.Common.SingleGasesData.Air.MM
"Molar mass of bulk medium";
Modelica.Blocks.Interfaces.RealInput m "Mass fraction";
Modelica.Blocks.Interfaces.RealOutput V "Volume fraction";
protected
parameter Real con=MMBul/MMMea
"Conversion coefficient from mass to volume fraction";
equation
V = con*m;
end To_VolumeFraction;