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An Experimental Study on Phase-Change Heat Transfer in Rectangular Micro-Capillary Grooves Cooling System(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2007年04期
Page:
45-47
Research Field:
Publishing date:

Info

Title:
An Experimental Study on Phase-Change Heat Transfer in Rectangular Micro-Capillary Grooves Cooling System
Author(s):
Li Bei1; Zhao Xiaobao1; Liu Ying1; Liu Zhigang2
1.School of Power Engineering,Nanjing Normal University,Nanjing 210042,China;2.Energy Research Insititute of Shandong Academy of Sciences,Jinan 250014,China
Keywords:
m icro capillary g rooves;  liquid he ight;  g roove size;  phase-change hea t transfe r;  heat flux density
PACS:
TK124
DOI:
-
Abstract:
An expe rim en tal study is conducted where a phase-chang e heat transfer perfo rmancew as investigated in a rectangular ve rtica lm icro capillary g rooves cooling system under the po ten tia l in fluence o f such factors as grooves surface size and liquid he ight. W hen themax im um heat flux density is acqu ired, the exper im ent con firm s the groove surface size as fo llow s: 0. 2 mm in w idth, 0. 8 mm in depth, and 0. 2mm in space betw een, and the number of grooves is 50. The exper im ent show s a strong relationsh ip between the perform ance of heat transfer and liqu id he ight. It is w hen the heating center and liqu id height are at the sam e leve l that the coo ling sy stem runs w ith m ax im um effic iency. When the liqu id he ight is low er than hea ting center, the higher liqu id he ight leve l is, them ore heat transfer effect it w ill be. W hen the liquid he ight is higher than the heating cen ter, there is no sign ificant re lationship betw een liqu id he ight and phase-chang e heat transfer.

References:

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Memo

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Last Update: 2013-04-29