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RESEARCH PAPERS: Boiling and Condensation

Identification of Pool Boiling Heat Transfer Mechanisms From a Wire Immersed in Saturated FC-72 Using a Single-Photo/LDA Method

[+] Author and Article Information
C. N. Ammerman, S. M. You, Y. S. Hong

Department of Mechanical and Aerospace Engineering, The University of Texas at Arlington, Arlington, TX 76019-0023

J. Heat Transfer 118(1), 117-123 (Feb 01, 1996) (7 pages) doi:10.1115/1.2824024 History: Received November 01, 1994; Revised August 01, 1995; Online December 05, 2007

Abstract

A unique method to determine the vapor volumetric flow rate above a heated wire utilizing a single photograph and laser-Doppler anemometry is developed and discussed. The volumetric flow rate is combined with additional analyses to determine the overall contributions to the total heat flux from four nucleate boiling heat transfer mechanisms (latent heat, natural convection, Marangoni flow, and microconvection). This method is applied to a 75-μm wire immersed in a saturated, highly wetting liquid (FC-72). Latent heat is identified as the dominant mechanism in the fully developed nucleate boiling regime.

Copyright © 1996 by The American Society of Mechanical Engineers
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