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RESEARCH PAPERS

Transition Boiling Heat Transfer and the Film Transition Regime

[+] Author and Article Information
J. M. Ramilison, J. H. Lienhard

Heat Transfer/Phase Change Laboratory, Mechanical Engineering Department, University of Houston, Houston, TX 77004

J. Heat Transfer 109(3), 746-752 (Aug 01, 1987) (7 pages) doi:10.1115/1.3248153 History: Received January 17, 1986; Online October 20, 2009

Abstract

The “Berenson” flat-plate transition-boiling experiment has been re-created with a reduced thermal resistance in the heater, and an improved access to those portions of the transition boiling regime that have a steep negative slope. Tests have been made in Freon-113, acetone, benzene, and n-pentane boiling on horizontal flat copper heaters that have been mirror-polished, “roughened,” or teflon-coated. The resulting data reproduce and clarify certain features observed by Berenson: the modest surface finish dependence of boiling burnout, and the influence of surface chemistry on both the minimum heat flux and the mode of transition boiling, for example. A rational scheme of correlation yields a prediction of the heat flux in what Witte and Lienhard previously identified as the “film-transition boiling” region. It is also shown how to calculate the heat flux at the boundary between the pure-film, and the film-transition, boiling regimes, as a function of the advancing contact angle.

Copyright © 1987 by ASME
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