Library Subscription: Guest

ISSN Online: 2377-424X

ISBN Print: 0-89116-130-9

International Heat Transfer Conference 6
August, 7-11, 1978, Toronto, Canada

RADIATIVE AND CONVECTIVE TRANSFER FOR TUBE FLOW OF A REAL GAS

Get access (open in a dialog) DOI: 10.1615/IHTC6.4270
pages 391-396

Abstract

A study of interaction of radiative and convective transfer is presented for slug flow of an absorbing-emitting gas in a black wall circular tube with a prescribed wall heat flux distribution. Axial gas and wall temperature distributions are evaluated utilizing the zone method of analysis. Gas radiative properties are described by the weighted sum of gray gases model with absorption and weighting coefficients available for an equimolal mixture of carbon dioxide and water vapor. The analysis demonstrates that gas and wall temperature distributions are dependent on several parameters, which, among others, include the Boltzmann and Stanton numbers, inlet gas temperature, length to diameter ratio as well as wall conductivity and heat flux distribution. Results are presented for step change and alternating wall heat flux distributions to illustrate the influence of radiative transfer on gas and wall temperatures upstream as well as down stream of the heating or cooling section.