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ISSN Online: 2377-424X

International Heat Transfer Conference 4
August 31 - September 5, 1970, Paris-Versailles, France

A ONE-DIMENSIONAL DISPERSION MODEL FOR TRANSIENT HEAT TRANSFER IN TURBULENT PIPE FLOW

Get access (open in a dialog) DOI: 10.1615/IHTC4.2120
pages 1-12

Abstract

The investigation established well-founded results from which it was concluded that axial dispersion has a very significant effect upon heat transfer in unsteady-state turbulent pipe flow. It was shown that this condition could be adequately described using a one-dimensional model which included axial dispersion in the fluid, axial conduction in the wall, and heat transfer (via an overall heat transfer coefficient) between the fluid and wall. The heat transfer coefficients determined under the transient conditions of the study were shown to agree with coefficients calculated from well-known steady-state correlations. It was further shown that axial heat transfer dispersion coefficients resulting from this investigation were not significantly different, in a statistical sense, from published correlations for mass transfer dispersion coefficients.