Contents - Index



Ar provides ideal gas thermodynamic properties for argon valid over the temperature range from 100 K to 6000 K based on the property information in McBride et al. (2002). 


Bonnie J. McBride, Michael J. Zehe, and Sanford Gordon

"NASA Glenn Coefficients for Calculating Thermodynamic Properties of Individual Species"

NASA/TP-2002-211556, Sept. 2002


The reference state for specific enthalpy is 0 at 25 C.  The reference state for specific entropy is 154.837 at 298.15 K and 101.3 kPa


Thermal conductivity data were fit from data in:

"Reference Handbook of Thermal Conductivity of Liquids and Gases, Vargaftik et al., 1994, CRC Press and applicable for temperatures between 100 K and 6000  K. 


Viscosity is from the ideal gas contribution reported in:

E.W. Lemmon and R.T. Jacobsen

"Viscosity and Thermal Conductivity Equations for Nitrogen, Oxygen, Argon, and Air"

International Journal of Thermophysics, Vol. 25, No. 1, January 2004, pp. 21-69



Note that Ar provides thermodynamic properties assuming ideal gas behavior.  Use Argon to provide real fluid properties in the subcooled, saturated mixture, and superheated regimes.  



Fluid Property Information