每年出版 8 期
ISSN 打印: 1065-5131
ISSN 在线: 1563-5074
IF:
2.3
5-Year IF:
1.8
Immediacy Index:
0.2
Eigenfactor:
0.00037
JCI:
0.6
SJR:
0.433
SNIP:
0.593
CiteScore™::
4.3
H-Index:
35
Indexed in
Phase-Change Heat Transfer in Micro-Capillary Grooves
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摘要
In the present paper, an experimental investigation about the phase-change heat transfer is performed on a vertical plate with rectangular micro-capillary grooves. The heat transfer is much enhanced compared to the pool nucleate boiling on a smooth surface. Boiling occurs, and vapor bubbles grow rapidly and rapture in the microgrooves as the wall heat flux is higher, while the heat transfer on the groove surface is a pure evaporation process at lower superheat. For smaller height surface, the mechanism of critical heat flux (CHF) is the same as that in usual pool boiling, but liquid supply limitation is essential to the maximum mean wall heat flux for larger height surface. The CHF is independent of the gravity. Furthermore, the experiment verified that the evaporative heat transfer only on the stable contact line (or meniscus) is small and incomparable to the value of CHF in usual pool boiling.
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Tang Y., Chi Y., Chen J.Ch., Deng X.X., Liu L., Liu X.K., Wan Zh.P., Experimental study of oil-filled high-speed spin forming micro-groove fin-inside tubes, International Journal of Machine Tools and Manufacture, 47, 7-8, 2007. Crossref
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Guan N., Liu Z.-G., Takei M., Zhang C.-W., Boiling Heat Transfer in Microcapillary Grooves with Different Structured Surfaces of Microcavities, Experimental Heat Transfer, 23, 3, 2010. Crossref
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Goldstein R.J., Ibele W.E., Patankar S.V., Simon T.W., Kuehn T.H., Strykowski P.J., Tamma K.K., Heberlein J.V.R., Davidson J.H., Bischof J., Kulacki F.A., Kortshagen U., Garrick S., Srinivasan V., Ghosh K., Mittal R., Heat transfer—A review of 2004 literature, International Journal of Heat and Mass Transfer, 53, 21-22, 2010. Crossref
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Wang Yiwei, Cen Jiwen, Jiang Fangming, An experimental investigation of heat transfer performance of a flat plate heat pipe with a combined capillary structure, Heat and Mass Transfer, 55, 4, 2019. Crossref