packageN2_H2O
2 components: N2, H2O
Extends from ThermalSeparation.Media.IdealGasMixtures.BaseClasses.BaseIdealGasMixture.
Information
This model calculates the medium properties for single component ideal gases.
Sources for model and literature:
Original Data: Computer program for calculation of complex chemical
equilibrium compositions and applications. Part 1: Analysis
Document ID: 19950013764 N (95N20180) File Series: NASA Technical Reports
Report Number: NASA-RP-1311 E-8017 NAS 1.61:1311
Authors: Gordon, Sanford (NASA Lewis Research Center)
Mcbride, Bonnie J. (NASA Lewis Research Center)
Published: Oct 01, 1994.
Known limits of validity: The data is valid for temperatures between 200 K and 6000 K. A few of the data sets for monatomic gases have a discontinuous 1st derivative at 1000 K, but this never caused problems so far.
This model has been copied from the ThermoFluid library. It has been developed by Hubertus Tummescheit.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer[:] | henry | {1} | |
| SI.Pressure[:] | henry_H | {8.51e9, 0} | Henry coefficient |
| Real[:] | henry_C | {1300, 0} | constant to calculate temperature dependency |
| SI.Temperature | henry_T_norm | 298 | norm temperature |
| Integer | nSubstance (from BaseMediumVapour) | 2 | number of substances |
| SI.Volume[nSubstance] | V (from BaseMediumVapour) | diffusion volumes, Taylor p. 69 | |
| Integer[nSubstance] | eq_Tsonopoulos (from BaseMediumVapour) | no. of equation for equation a and b in Table 4-5 in Properties of Gases and Liquids, 5th ed. | |
| Real[nSubstance] | sigma (from BaseMediumVapour) | surface tension | |
| Real[nSubstance] | epsilon_k (from BaseMediumVapour) | Lennard-Jones force constant (epsilon/k), constant value | |
| SI.MolarMass | MMX (from BaseMediumVapour) | molar masses of components | |
| Boolean | delta_hv_medium (from BaseMediumVapour) | true | true, if evaporation enthalpy is considered in medium model |
| ThermalSeparation.Media.IdealGasMixtures.BaseClasses.Common.DataRecord | data (from BaseIdealGasMixture) | ||
| String | mediumName (from BaseIdealGasMixture) | "unusablePartialMedium" | Name of the medium |
| String[:] | extraPropertiesNames (from BaseIdealGasMixture) | fill("", 0) | Names of the additional (extra) transported properties. Set extraPropertiesNames=fill("",0) if unused |
| Boolean | singleState (from BaseIdealGasMixture) | false | = true, if u and d are not a function of pressure |
| Boolean | reducedX (from BaseIdealGasMixture) | false | = true if medium contains the equation sum(X) = 1.0; set reducedX=true if only one substance (see docu for details) |
| Boolean | fixedX (from BaseIdealGasMixture) | false | = true if medium contains the equation X = reference_X |
| AbsolutePressure | reference_p (from BaseIdealGasMixture) | 101325 | Reference pressure of Medium: default 1 atmosphere |
| Temperature | reference_T (from BaseIdealGasMixture) | 298.15 | Reference temperature of Medium: default 25 deg Celsius |
| MassFraction[nX] | reference_X (from BaseIdealGasMixture) | if nX == 0 then fill(0, nX) else fill(1/nX, nX) | Default mass fractions of medium |
| AbsolutePressure | p_default (from BaseIdealGasMixture) | 101325 | Default value for pressure of medium (for initialization) |
| Temperature | T_default (from BaseIdealGasMixture) | Modelica.Units.Conversions.from_degC(20) | Default value for temperature of medium (for initialization) |
| SpecificEnthalpy | h_default (from BaseIdealGasMixture) | ThermalSeparation.Media.IdealGasMixtures.BaseClasses.BaseIdealGasMixture.specificEnthalpy_pTX(p_default, T_default, X_default) | Default value for specific enthalpy of medium (for initialization) |
| MassFraction[nX] | X_default (from BaseIdealGasMixture) | reference_X | Default value for mass fractions of medium (for initialization) |
| Integer | nS (from BaseIdealGasMixture) | Number of substances | |
| Integer | nX (from BaseIdealGasMixture) | nS | Number of mass fractions (= 0, if only one substance) |
| Integer | nXi (from BaseIdealGasMixture) | if fixedX then 0 else if reducedX then nS - 1 else nX | Number of structurally independent mass fractions (see docu for details) |
| Integer | nC (from BaseIdealGasMixture) | size(extraPropertiesNames, 1) | Number of extra (outside of standard mass-balance) transported properties |
| SI.Temperature[nX] | Tcrit (from BaseIdealGasMixture) | critTemp() | |
| SI.Pressure[nX] | pcrit (from BaseIdealGasMixture) | critPressure() | |
| SI.MolarVolume[nX] | Vcrit (from BaseIdealGasMixture) | critVolume() | |
| Real[nX] | omega (from BaseIdealGasMixture) | acentricFac() | |
| DipoleMoment[nX] | mu (from BaseIdealGasMixture) | dipoleMoment() | |
| Real[nX] | R_const (from BaseIdealGasMixture) | ||
| Boolean | excludeEnthalpyOfFormation (from BaseIdealGasMixture) | true | If true, enthalpy of formation Hf is not included in specific enthalpy h |
| Choices.ReferenceEnthalpy.Temp | referenceChoice (from BaseIdealGasMixture) | Choices.ReferenceEnthalpy.ZeroAt0K | Choice of reference enthalpy |
| SpecificEnthalpy | h_offset (from BaseIdealGasMixture) | 0.0 | User defined offset for reference enthalpy, if referenceChoice = UserDefined |
| FluidConstants | fluidConstants (from BaseIdealGasMixture) | constant data for the fluid |
Contents
| Name | Description |
|---|---|
 BaseProperties | |
 CalcSpecificEnthalpy | |
 EvaporationEnthalpy |