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ISSN Online: 2377-424X

ISBN Print: 0-89116-909-1

International Heat Transfer Conference 9
August, 19-24, 1990 , Jerusalem, Israel

A MODEL FOR THE TRANSIENT REWETTING OF A BOILER TUBE

Get access (open in a dialog) DOI: 10.1615/IHTC9.1040
pages 45-49

Sinopsis

In order to simulate the tube wall temperature excursions which can arise during transient rewetting, a model has been developed in which the rate of rewetting is controlled by the conduction of heat past the wetting front through the tube wall. The model is based upon a one-dimensional axial heat conduction model, which has been adapted to include an allowance for the effects of radial temperature variations and the extent and circumferential non-uniformity of the wetting front. By making use of perturbation theory the resulting model is analytic and computationally fast, and has been incorporated into the boiler program NUMEL.