WOLFRAM SYSTEMMODELER

Utilities

Utility package for moist air

Package Contents

Inverses

Compute inverse function

Transport

Package for transport properties of moist air

VirialCoefficients

Virial and cross-virial coefficients of air and water

ReactionIndices

Parameters and equations for determining reaction variables (dissociation VDI 4670)

IF97_new

Workaround for IF97

Water95_Utilities

Utility functions from IAPWS95 required for air temperatures below 273.15 K

Ice09_Utilities

Utility functions from IAPWS09 required for ice in air

beta_H

Henry's law constant

f_pT

Enhancement factor as function of pressure and temperature

rho_pTX

Return density as a function of pressure p, temperature T and composition X

pds_pT

Saturation partial pressure of steam

pd_pTX

partial pressure of steam

xws_pT

Humidity ratio (absolute) of saturated humid air

phi_pTX

Relative humidity

cp_pTX

Specific isobaric heat capacity

cv_pTX

Specific isochoric heat capacity

h_pTX

Specific enthalpy of moist air

h_dis_pTX

s_pTX

Specific entropy of moist air

u_pTX

Internal energy

cp_dis_pTX

s_dis_pTX

pd_pTX_der

Derivative of partial pressure of steam

xws_pT_der

Derivative of humidity ration (absolute) of saturated humid air

pds_pT_der

Derivative of saturation partial pressure of steam

rho_pTX_der

Derivative of density as a function of pressure p, temperature T and composition X

h_dis_pTX_der

h_pTX_der

Derivative of specific enthalpy of moist air

u_pTX_der

Derivative of internal energy

Package Constants (2)

MMX

Value: {18.015257E-003, 28.01348E-003, 31.9988E-003, 39.948E-003}

Type: MoleFraction[4] (mol/mol)

Xi_Air

Value: {0.7557, 0.2316, 0.0127}

Type: Real[3]

Wolfram Language

In[1]:=
SystemModel["Modelica.Media.Air.ReferenceMoistAir.Utilities"]
Out[1]:=