BIBLIOS

Document type
Journal articles

Document subtype
Full paper

Title
Thermal conductivity measurement of n-butane over wide temperature and pressure ranges

Participants in the publication
C. A. Nieto de Castro (Author)
Dep. Química e Bioquímica
CQE
R. Tufeu (Author)
B. Le Neindre (Author)

Summary
The thermal conductivity of n-butane has been measured by a coaxial-cylinder\\nmethod over a pressure range from 0.1 MPa up to 70 MPa and a temperature\\nrange from room temperature to 600 K, covering all fluid states. The estimated\\naccuracy of the method is about 2%. Special emphasis has been given to the\\nbehavior of the thermal conductivity near the critical point, and the critical\\nenhancement has been studied for 3.6 K < AT < 176 K. The effect of inelastic\\ncollisions upon transport properties of the dilute gas has been discussed. The\\nresults obtained for the reduced critical enhancement as a function of the\\nreduced critical temperature confirm the universality of the critical exponent, for\\nthe n-alkanes, whereas the reduced excess thermal conductivity outside the\\ncritical region is a function of the reduced density and of the n-alkane.


Institution
INSTITUTO SUPERIOR TÉCNICO

Where published
International Journal of Thermophysics

Publication Identifiers

Publisher
Springer Science and Business Media LLC



Document Identifiers
DOI - https://doi.org/10.1007/bf00504479
URL - http://dx.doi.org/10.1007/bf00504479

Keywords
butane corresponding states critical region thermal conductivity

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