Contents - Index


ARGON

 

ARGON provides thermodynamic properties using the fundamental equation of state developed by C. Tegeler, R. Span, and W. Wagner, "Eine neue Fundamental-gleichung für das fluide Zustandsgebiet von Argon für Temperaturen von der Schmelzlinie bis 700 K und Drücke bis 1000 MPa", Fortschritt-Berichte VDI, Reihe 3: Verfahrenstechnik Nr. 480, as documement by  Reiner Tillner-Roth, Fundamental Equations of State, Shaker Verlag, Aachen, 1998

 

This information is also available in:

 

Ch. Tegeler, R. Span, W. Wagner

A New Equation of State for Argon Covering the Fluid Region for Temperatures From the Melting Line to 700 K at Pressures up to 1000 MPa

J.Phys. Chem Ref. Data, 28(3) pp. 779-850 (1999)

 

The reference state for specific enthalpy and entropy are set to zero is 298.15 K and 191.1325 kPa.  The reference state can be changed with the $REFEFERENCE directive.  To change the reference state to be zero for saturated liquid at the normal boiling point, enter the following directive into the Equations window.

 

$REFERENCE Argon NBP

 

 

The transport properties are implemented with the equations provided 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

 

Surface tension data are provided using the information in:

Mulero, A., Cachadina, I, and Parra, M.

"Recommended Correlations for the Surface Tension of Common Fluids"

J.Phys. Chem Ref. Data, Vol. 41, No.4, 2012

 

 

Fluid Property Information.