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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

The Temperature Dependence of the Thermal Conductivity of Air

WG Kannuluik and EH Carman

Australian Journal of Scientific Research 4(3) 305 - 314
Published: 1951

Abstract

The thermal conductivity of air is determined in absolute measure between -183 and 218 °C. by the " thick-wire " variant of the " hot-wire " method. The apparatus consists of a platinum wire 11 6 cm. long and 1.5 mm. in diameter mounted in a 90 per cent. Pt 10 per cent. Ir tube of 7 mm. internal diameter. The temperature variation of the thermal conductivity of air can be represented with considerable accuracy by the quadratic formula               kt=5. 75 x 10-5(l +0.00317t-0.0000021t2) The present paper suggests a value for the thermal conductivity of air at 0 °C. from a consideration of the data which have been obtained by various hot-wire methods.

https://doi.org/10.1071/CH9510305

© CSIRO 1951

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