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RESEARCH PAPERS

Axial Distribution of Bulk Temperature and Void Fraction in a Heated Channel With Inlet Subcooling

[+] Author and Article Information
S. Y. Ahmad

Advanced Projects and Reactor Physics Division, Atomic Energy of Canada Ltd., Chalk River, Ontario

J. Heat Transfer 92(4), 595-609 (Nov 01, 1970) (15 pages) doi:10.1115/1.3449729 History: Received June 12, 1969; Revised February 13, 1970; Online August 11, 2010

Abstract

A theoretical model is developed to determine the axial temperature distribution of subcooled liquid. It is a simple function of a heat transfer and a condensation parameter. The proposed model satisfactorily correlates the measured bulk temperature profiles. The corresponding mid fraction is computed by using a new empirical slip correlation, valid in both subcooled and bulk boiling regions. The resulting axial void profile has been compared (over the entire heated length) with steam and water data from six different sources, covering a wide range of pressure, mass flux, surface heat flux, inlet subcooling and channel geometry. The method gives satisfactory agreement with experimental data.

Copyright © 1970 by ASME
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