Name | Description |
---|---|
MassFractionVolumeFraction | Model to convert between mass fraction and volume fraction |
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 specy is small enough to be neglected in the molar mass of the mixture.
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] |
Type | Name | Description |
---|---|---|
RealSignal | m | Mass fraction |
RealSignal | V | Volume fraction |
model MassFractionVolumeFraction "Model to convert between mass fraction and volume fraction" extends Buildings.BaseClasses.BaseIcon; Modelica.Blocks.Interfaces.RealSignal m(redeclare type SignalType = Modelica.SIunits.MassFraction) "Mass fraction"; Modelica.Blocks.Interfaces.RealSignal V(redeclare type SignalType = Modelica.SIunits.VolumeFraction) "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"; protected parameter Real con = MMBul/MMMea "Conversion coefficient from mass to volume fraction"; equation V = con * m; end MassFractionVolumeFraction;