Heater Orientation Effects on Pool Boiling of Micro-Porous-Enhanced Surfaces in Saturated FC-72

Author:

Chang J. Y.1,You S. M.1

Affiliation:

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

Abstract

Experiments are performed to understand the effects of surface orientation on the pool boiling characteristics of a highly wetting fluid from a flush-mounted, micro-porous-enhanced square heater. Micro-porous enhancement was achieved by applying copper and aluminum particle coatings to the heater surfaces. Effects of heater orientation on CHF and nucleate boiling heat transfer for uncoated and coated surfaces are compared. A correlation is developed to predict the heater orientation effect on CHF for those surfaces.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Reference24 articles.

1. Bar-Cohen, A., and McNeil, A., 1992, “Parametric Effects of Pool Boiling Critical Heat Flux in Dielectric Liquids,” Pool and External Flow Boiling, ASME, pp. 171–175.

2. Beduz C. , ScurlockR. G., and SousaA. J., 1988, “Angular Dependence of Boiling Heat Transfer Mechanisms in Liquid Nitrogen,” Advances in Cryogenic Eng., Vol. 33, pp. 363–370.

3. Carvalho, R. D. M., and Bergles, A. E., 1992, “The Effects of the Heater Thermal Conductance/Capacitance on the Pool Boiling Critical Heat Flux,” Pool and External Flow Boiling, ASME, pp. 203–211.

4. Chen L. T. , 1978, “Heat Transfer to Pool-Boiling Freon From Inclined Heating Plate,” Letters in Heat and Mass Transfer, Vol. 5, pp. 111–120.

5. Czikk, A. M., O’Neill, P. S., and Gotzzman, C. F., 1981, “Nucleate Boiling From Porous Metal Film: Effect of Primary Variables,” ASME HTD-Vol. 18, pp. 109–122.

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