.SolarTherm.Media.MoltenSalt.MoltenSalt_ph

Information

Calculation of fluid properties for the mixture common molten salt (60% NaNO₃ and 40% KNO₃) in the fluid region of 573.15 to 873.15 Kelvin.The use of this molten salt is usally used in solar thermal system due to its high thermal capacity and the high range of temperature.

This package of thermodynamic properties is explicit for pressure and specific enthalpy, however it is based in functions where the dependency is exclusively in the temperature.

Restriction

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

• 573.15 Kelvin ≤ T ≤ 873.15 Kelvin
• explicit for pressure and specific enthalpy

References

Zavoico, A. B. (2001). Solar Power Tower - Design Basis Document. Technical Report SAND2001-2100. Alburquerque, USA. Retrieved from http://prod.sandia.gov/techlib/access-control.cgi/2001/012100.pdf

Ferri, R., Cammi, A., & Mazzei, D. (2008). Molten salt mixture properties in RELAP5 code for thermodynamic solar applications. International Journal of Thermal Sciences, 47(12), 1676–1687. http://doi.org/10.1016/j.ijthermalsci.2008.01.007

Contents

Name	Description
ThermodynamicState	A selection of variables that uniquely defines the thermodynamic state
BaseProperties	Base properties of medium
setState_pTX	Return thermodynamic state from p, T, and X or Xi
setState_phX	Return thermodynamic state from p, h, and X or Xi
setState_psX	Return thermodynamic state from p, s, and X or Xi
setState_dTX	Return thermodynamic state from d, T, and 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
density_derT_p	Return density derivative w.r.t. temperature at constant pressure