.SolarTherm.Media.Sodium.Sodium_pT

Information

Calculation of fluid properties for pure liquid sodium in the fluid region of 370 to 1154 Kelvin. Sodium is used in solar thermal systems due to the wide range of operating temperature it offers and its high thermal conductivity.

This package of thermodynamic properties is explicit for pressure and temperature.

These correlations have been obtained by integration of (cp dT) to obtain enthalpy, and integration of (cp/T dT) to obtain entropy. Integration constants are added so that h and s evaluate to zero at T = 298.15 K (Ref: Pye, 2015).

Restriction

The functions provided by this package shall be used inside of the restricted limits according to the referenced literature.

References

Fink, J. & Leibowitz, L. (1995). 'Thermodynamic and transport properties of sodium liquid and vapour', Technical Report ANL/RE-95/2, Reactor Engineering Division, Argonne National Laboratories. Retrieved from http://www.ne.anl.gov/eda/ANL-RE-95-2.pdf

Pye, J. (2015). 'Model of liquid sodium properties'. Retreived from http://code.ascend4.org/ascend/trunk/models/johnpye/liquidsodium.a4c

Contents

NameDescription
 ThermodynamicStateA selection of variables that uniquely defines the thermodynamic state
 BasePropertiesBase properties of medium
 setState_pTXReturn thermodynamic state as function of p, T and composition X or Xi
 setState_phXReturn thermodynamic state as function of p, h and composition X or Xi
 setState_psXReturn thermodynamic state as function of p, s and composition X or Xi
 setState_dTXReturn thermodynamic state as function of d, T and composition X or Xi
 pressureReturn pressure
 temperatureReturn temperature
 specificEnthalpyReturn specific enthalpy
 densityReturn density
 specificInternalEnergyReturn specific internal energy
 dynamicViscosityReturn dynamic viscosity
 thermalConductivityReturn thermal conductivity
 specificEntropyReturn specific entropy
 specificGibbsEnergyReturn specific Gibbs energy
 specificHelmholtzEnergyReturn specific Helmholtz energy
 specificHeatCapacityCpReturn specific heat capacity at constant pressure
 specificHeatCapacityCvReturn specific heat capacity at constant volume
 isentropicExponentReturn isentropic exponent
 isentropicEnthalpyReturn isentropic enthalpy
 velocityOfSoundReturn velocity of sound
 isobaricExpansionCoefficientReturn overall the isobaric expansion coefficient beta
 isothermalCompressibilityReturn overall the isothermal compressibility factor
 enthalpyOfVaporizationReturn vaporization enthalpy of condensing fluid
 density_derT_pReturn density derivative w.r.t. temperature at constant pressure

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