Heat Transfer in Rarefied Gas at a Gas-Solid Interface

Authors

Yaşar Demirel, University of Nebraska-LincolnFollow
Satish C. Saxena, University of Illinois at Chicago

ORCID IDs

Demirel 0000-0002-8183-0991

Date of this Version

2-1996

Citation

Energy (February 1996) 21(2): 99-103

doi: 10.1016/0360-5442(95)00096-8

Relevant information about the patent may be found at the journal website

Comments

Copyright © 1996, Elsevier

Abstract

Modified expressions for the heat-transfer fluxes at the interface of a solid surface and a gas are given for different Knudsen-number regimes. These expressions for diatomic gases contain both a gas-reflection and a thermal accommodation coefficient. Parallel-plate, coaxial-cylindrical and concentric spherical surfaces are considered. A general expression for the thermal accommodation coefficient is based on experimental data. Sample numerical calculations of heat flux in different heat-transfer regimes are presented in terms of the reciprocal Knudsen number.