RESEARCH PAPERS: Boiling and Condensation

A Simplified Model for Predicting Vapor Bubble Growth Rates in Heterogeneous Boiling

[+] Author and Article Information
W. C. Chen, J. F. Klausner

Department of Mechanical Engineering, University of Florida, Gainesville, FL 32611

R. Mei

Department of Aerospace Engineering, Mechanics and Engineering Science, University of Florida, Gainesville, FL 32611

J. Heat Transfer 117(4), 976-980 (Nov 01, 1995) (5 pages) doi:10.1115/1.2836319 History: Received September 01, 1994; Revised February 01, 1995; Online January 23, 2008


A simplified model, based on heat transfer through a wedge-shaped liquid microlayer and a lumped thermal analysis for a solid heater, is developed for predicting the vapor bubble growth rate in heterogeneous pool boiling. A first-order ordinary differential equation is obtained for the bubble growth rate. An empirical parameter, C2 , which characterizes the region of the heating surface influenced by microlayer evaporation, is determined by matching the existing experimental data with the predicted growth rate. The present bubble growth model compares well with the available experimental data for intermediate and moderately wetting fluids in which Jacob number ranges from 0.52 to 1974.

Copyright © 1995 by The American Society of Mechanical Engineers
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