The thermal diffusivity of argon in the critical region
Abstract
In this paper experimental results on the thermal diffusivity of argon in the supercritical region are reported. Five isotherms were investigated at 150.90, 153.16, 163.15, 173.14, and 188.14 K, in the pressure range from 2 to 13 MPa, corresponding to density variations from 90 to 800kg · m-3. The experimental thermal diffusivity data are compared with theoretical predictions. The corresponding thermal conductivity coefficients are calculated and correlated with respect to the spinodal curve.
- Publication:
-
International Journal of Thermophysics
- Pub Date:
- January 1991
- DOI:
- 10.1007/BF00506123
- Bibcode:
- 1991IJT....12...67G
- Keywords:
-
- argon;
- thermal conductivity;
- thermal diffusivity;
- supercritical region