TITLE

The thermal conductivity of methane in the critical region

AUTHOR(S)
Sakonidou, E. P.; van den Berg, H. R.; ten Seldam, C. A.; Sengers, J. V.
PUB. DATE
December 1996
SOURCE
Journal of Chemical Physics;12/15/1996, Vol. 105 Issue 23, p10535
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have measured the thermal conductivity of methane at temperatures from 308 K down to 190.585 K, which is just 21 mK above the critical temperature, and at densities up to 14 mol L-1. The data were obtained with an improved guarded parallel-plate cell with a new cryostat that was built especially for measurements in the critical region of methane. The new experimental data have a higher accuracy than those reported previously in the literature and enable us to examine the validity of the currently available theoretical description of the asymptotic and nonasymptotic behavior of the thermal conductivity of fluids in the critical region. Equations for the thermal conductivity of methane in a wide range of temperatures and densities are also presented. © 1996 American Institute of Physics.
ACCESSION #
7629796

 

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