Critical heat flux of bi-porous sintered copper coatings in FC-72

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In this study, the critical heat flux of bi-porous sintered copper coatings in FC-72 is investigated experimentally. The effects of particle size (45 <= d <= 100 gm), cluster size (250 D <= 675 gm), and coating thickness (0.7 <= t <= 3 mm) on the critical heat flux are considered. The results show that the bi-porous coatings can improve the critical heat flux of mono-porous coatings significantly, by up to 72%. The critical heat flux of bi-porous coatings is shown to be primarily a function of the particle size to cluster size ratio (d/D) and nearly independent of the coating thickness. The critical heat flux attains a maximum value when d/D is approximately 0.15. Based on the experimental results, a correlation for predicting the critical heat flux of bi-porous coatings is proposed as a function of d/D. The proposed correlation is valid over the parameter range typically encountered in heat transfer applications. (C) 2013 Elsevier Ltd. All rights reserved.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2013-10
Language
English
Article Type
Article
Keywords

SATURATED FC-72; BIPOROUS WICKS; ENHANCEMENT; SURFACES; THIN

Citation

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v.65, pp.655 - 661

ISSN
0017-9310
DOI
10.1016/j.ijheatmasstransfer.2013.06.029
URI
http://hdl.handle.net/10203/212186
Appears in Collection
ME-Journal Papers(저널논문)
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