WOLFRAM SYSTEM MODELER

CombustionAir

Air as mixture of N2 and O2

Package Constants (27)

ThermoStates

Value: Modelica.Media.Interfaces.Choices.IndependentVariables.pTX

Type: IndependentVariables

Description: Enumeration type for independent variables

mediumName

Value: "CombustionAirN2O2"

Type: String

Description: Name of the medium

substanceNames

Value: {"Nitrogen", "Oxygen"}

Type: String[:]

Description: Names of the mixture substances. Set substanceNames={mediumName} if only one substance.

extraPropertiesNames

Value: fill("", 0)

Type: String[:]

Description: Names of the additional (extra) transported properties. Set extraPropertiesNames=fill("",0) if unused

singleState

Value: false

Type: Boolean

Description: = true, if u and d are not a function of pressure

reducedX

Value: false

Type: Boolean

Description: = true if medium contains the equation sum(X) = 1.0; set reducedX=true if only one substance (see docu for details)

fixedX

Value: false

Type: Boolean

Description: = true if medium contains the equation X = reference_X

reference_p

Value: 101325

Type: AbsolutePressure (Pa)

Description: Reference pressure of Medium: default 1 atmosphere

reference_T

Value: 298.15

Type: Temperature (K)

Description: Reference temperature of Medium: default 25 deg Celsius

reference_X

Value: {0.768, 0.232}

Type: MassFraction[nX] (kg/kg)

Description: Default mass fractions of medium

p_default

Value: 101325

Type: AbsolutePressure (Pa)

Description: Default value for pressure of medium (for initialization)

T_default

Value: Modelica.Units.Conversions.from_degC(20)

Type: Temperature (K)

Description: Default value for temperature of medium (for initialization)

h_default

Value: specificEnthalpy_pTX(p_default, T_default, X_default)

Type: SpecificEnthalpy (J/kg)

Description: Default value for specific enthalpy of medium (for initialization)

X_default

Value: reference_X

Type: MassFraction[nX] (kg/kg)

Description: Default value for mass fractions of medium (for initialization)

C_default

Value: fill(0, nC)

Type: ExtraProperty[nC]

Description: Default value for trace substances of medium (for initialization)

nS

Value: size(substanceNames, 1)

Type: Integer

Description: Number of substances

nX

Value: nS

Type: Integer

Description: Number of mass fractions

nXi

Value: if fixedX then 0 else if reducedX then nS - 1 else nS

Type: Integer

Description: Number of structurally independent mass fractions (see docu for details)

nC

Value: size(extraPropertiesNames, 1)

Type: Integer

Description: Number of extra (outside of standard mass-balance) transported properties

C_nominal

Value: 1.0e-6 * ones(nC)

Type: Real[nC]

Description: Default for the nominal values for the extra properties

fluidConstants

Value: {Common.FluidData.N2, Common.FluidData.O2}

Type: FluidConstants[nS]

Description: Constant data for the fluid

data

Value: {Common.SingleGasesData.N2, Common.SingleGasesData.O2}

Type: DataRecord[:]

Description: Data records of ideal gas substances

excludeEnthalpyOfFormation

Value: true

Type: Boolean

Description: If true, enthalpy of formation Hf is not included in specific enthalpy h

referenceChoice

Value: ReferenceEnthalpy.ZeroAt0K

Type: ReferenceEnthalpy

Description: Choice of reference enthalpy

h_offset

Value: 0.0

Type: SpecificEnthalpy (J/kg)

Description: User defined offset for reference enthalpy, if referenceChoice = UserDefined

MMX

Value: data[:].MM

Type: MolarMass[nX] (kg/mol)

Description: Molar masses of components

methodForThermalConductivity

Value: 1

Type: Integer

Wolfram Language

In[1]:=
SystemModel["Modelica.Media.IdealGases.MixtureGases.CombustionAir"]
Out[1]:=

Extended by (1)

Medium1

Modelica.Media.Examples.MixtureGases

Medium model