An experimental study of pool boiling using enhanced structures under top-confined conditions was conducted with a dielectric fluorocarbon liquid (PF 5060). The single layer enhanced structures studied were fabricated in copper and quartz, had an overall size of , and were thick. The parameters investigated in this study were the heat flux and the top space . High-speed visualizations were performed to elucidate the liquid/vapor flow in the space above the structure. The enhancement observed for plain surfaces in the low heat fluxes regime is not present for the present enhanced structure. On the other hand, the maximum heat flux for a prescribed surface temperature limit increased with the increase of the top spacing, similar to the plain surfaces case. Two characteristic regimes of pool boiling have been identified and described: isolated flattened bubbles regime and coalesced bubbles regime.
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e-mail: yogendra.joshi@me.gatech.edu
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December 2006
This article was originally published in
Journal of Heat Transfer
Research Papers
Pool Boiling Using Thin Enhanced Structures Under Top-Confined Conditions
Camil-Daniel Ghiu,
Camil-Daniel Ghiu
G.W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332
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Yogendra K. Joshi
Yogendra K. Joshi
G.W. Woodruff School of Mechanical Engineering,
e-mail: yogendra.joshi@me.gatech.edu
Georgia Institute of Technology
, Atlanta, GA 30332
Search for other works by this author on:
Camil-Daniel Ghiu
G.W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332
Yogendra K. Joshi
G.W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332e-mail: yogendra.joshi@me.gatech.edu
J. Heat Transfer. Dec 2006, 128(12): 1302-1311 (10 pages)
Published Online: June 16, 2006
Article history
Received:
October 14, 2005
Revised:
June 16, 2006
Citation
Ghiu, C., and Joshi, Y. K. (June 16, 2006). "Pool Boiling Using Thin Enhanced Structures Under Top-Confined Conditions." ASME. J. Heat Transfer. December 2006; 128(12): 1302–1311. https://doi.org/10.1115/1.2349503
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