The Effect of Subcooled Liquid on Laminar Film Boiling

[+] Author and Article Information
E. M. Sparrow

Heat Transfer Laboratory, Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minn.

R. D. Cess

Department of Engineering, State University of New York, Long Island Center, Oyster Bay, N. Y.

J. Heat Transfer 84(2), 149-155 (May 01, 1962) (7 pages) doi:10.1115/1.3684317 History: Received March 14, 1961


Heat-transfer results for film boiling in the presence of a subcooled liquid have been determined analytically for the case of the isothermal vertical plate. The two-phase flow and heat-transfer problem which arises has been formulated exactly within the framework of boundary-layer theory, and free convection within the liquid has been accounted for. At a fixed temperature difference between surface and saturation, the effect of subcooling is to increase the heat transfer from the plate surface, with the magnitude of the increase being controlled by five physical parameters. Graphical presentation of the heat-transfer results is made for parametric values which correspond to water, but this information may be applied to other fluids having similar parameter ranges. For large subcooling, the heat transfer is essentially equal to that for pure free convection (no boiling), and the limits for this condition are given.

Copyright © 1962 by ASME
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