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Bubble Behavior and Heat Transfer of Nucleate Pool Boiling on Micro-Pin-Finned Surface in Microgravity
Wei JJ; Xue Y; Zhao JF(赵建福); Li J(李晶); Wei, JJ (reprint author), Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
Source PublicationChinese Physics Letters
2011
Volume28Issue:1Pages:16401
ISSN0256-307X
AbstractNucleate pool boiling on micro-pin-finned surface structure is proposed for efficiently cooling electronic components with high heat flux in microgravity, and was verified by experiments performed utilizing the drop tower Beijing. Micro-pin-fins with the dimensions of 50 x 60 mu m(2) (thickness x height) and the space of 50 mu m were fabricated on the chip surface by the dry etching technique. FC-72 was used as the working fluid. Nucleate pool boiling of FC-72 on a smooth surface was also tested for comparison. Unlike much obvious deterioration of heat transfer of nucleate pool boiling on the smooth surface in microgravity, constant heater surface temperature of nucleate pool boiling for the micro-pin-finned surface was observed, even though a large coalesced bubble completely covered the surface under microgravity condition. The performance of high efficient heat transfer on micro-pin-finned surface is independent of the gravity, which stems from the sufficient supply of fresh liquid to the heater surface due to the capillary forces.
KeywordSilicon Chips Fc-72
Subject AreaPhysics
DOI10.1088/0256-307X/28/1/016401
URL查看原文
Indexed BySCI
Language英语
WOS IDWOS:000285966900044
WOS KeywordSILICON CHIPS ; FC-72
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Funding OrganizationSupported by the National Natural Science Foundation of China under Grant Nos 50806057 and 10972225, and the Key Laboratory of Microgravity/CAS for experiments utilizing the drop tower Beijing.
DepartmentNML微重力两相流与燃烧
ClassificationQ3
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45109
Collection国家微重力实验室
Corresponding AuthorWei, JJ (reprint author), Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
Recommended Citation
GB/T 7714
Wei JJ,Xue Y,Zhao JF,et al. Bubble Behavior and Heat Transfer of Nucleate Pool Boiling on Micro-Pin-Finned Surface in Microgravity[J]. Chinese Physics Letters,2011,28(1):16401
APA Wei JJ,Xue Y,赵建福,李晶,&Wei, JJ .(2011).Bubble Behavior and Heat Transfer of Nucleate Pool Boiling on Micro-Pin-Finned Surface in Microgravity.Chinese Physics Letters,28(1),16401.
MLA Wei JJ,et al."Bubble Behavior and Heat Transfer of Nucleate Pool Boiling on Micro-Pin-Finned Surface in Microgravity".Chinese Physics Letters 28.1(2011):16401.
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