.SolarTherm.Media.Sodium.Sodium_pT .SolarTherm.Media.Sodium.Sodium_pTCalculation 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
| Name | Description |
|---|---|
 ThermodynamicState | A selection of variables that uniquely defines the thermodynamic state |
 BaseProperties | Base properties of medium |
 setState_pTX | Return thermodynamic state as function of p, T and composition X or Xi |
 setState_phX | Return thermodynamic state as function of p, h and composition X or Xi |
 setState_psX | Return thermodynamic state as function of p, s and composition X or Xi |
 setState_dTX | Return thermodynamic state as function of d, T and composition X or Xi |
 pressure | Return pressure |
 temperature | Return temperature |
 specificEnthalpy | Return specific enthalpy |
 density | Return density |
 specificInternalEnergy | Return specific internal energy |
 dynamicViscosity | Return dynamic viscosity |
 thermalConductivity | Return thermal conductivity |
 specificEntropy | Return specific entropy |
 specificGibbsEnergy | Return specific Gibbs energy |
 specificHelmholtzEnergy | Return specific Helmholtz energy |
 specificHeatCapacityCp | Return specific heat capacity at constant pressure |
 specificHeatCapacityCv | Return specific heat capacity at constant volume |
 isentropicExponent | Return isentropic exponent |
 isentropicEnthalpy | Return isentropic enthalpy |
 velocityOfSound | Return velocity of sound |
 isobaricExpansionCoefficient | Return overall the isobaric expansion coefficient beta |
 isothermalCompressibility | Return overall the isothermal compressibility factor |
 enthalpyOfVaporization | Return vaporization enthalpy of condensing fluid |
 density_derT_p | Return density derivative w.r.t. temperature at constant pressure |