ISSN:
1572-9567
Keywords:
Knudsen effect
;
propane
;
thermal conductivity
;
thermal diffusivity
;
transient line-source method
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract This paper decribes the Knudsen-effect errors of the transient line-source method used for accurate measurements of the thermal conductivity and thermal diffusivity of fluids. The analysis demonstrates that the instrument can be used with a good accuracy (〉0.5%) to lower densities than previously thought. The principal errors are illustrated by measurements on propane in the temperature range 250–300 K at densities less than 9 kg · m−3.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00503223
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