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Microscale heat transfer enhancement using thermal boundary layer redeveloping concept
Xu, JL; Gan, YH; Zhang, DC; Li, XH
2005-04-01
发表期刊INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷号48期号:9页码:1662-1674
摘要We demonstrated a new silicon microchannel heat sink, composing of parallel longitudinal microchannels and several transverse microchannels, which separate the whole flow length into several independent zones, in which the thermal boundary layer is in developing. The redeveloping flow is repeated for all of the independent zones thus the overall heat transfer is greatly enhanced. Meanwhile, the pressure drops are decreased compared with the conventional microchannel heat sink. Both benefits of enhanced heat transfer and decreased pressure drop ensure the possibility to use "larger" hydraulic diameter of the microchannels so that less pumping power is needed, which are attractive for high heat flux chip cooling. The above idea fulfilled in microscale is verified by a set of experiments. The local chip temperature and Nusselt numbers are obtained using a high resolution Infrared Radiator Imaging system. Preliminary explanation is given on the decreased pressure drop while enhancing heat transfer. The dimensionless control parameter that guides the new heat sink design and the prospective of the new heat sink are discussed. (c) 2005 Elsevier Ltd. All rights reserved.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.ijheatmasstransfer.2004.12.008
研究领域[WOS]Thermodynamics ; Engineering ; Mechanics
关键词[WOS]MICROCHANNELS ; FLOW
收录类别SCI
语种英语
WOS类目Thermodynamics ; Engineering, Mechanical ; Mechanics
WOS记录号WOS:000228237000002
引用统计
被引频次:172[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10227
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.Univ Sci & Technol China, Dept Thermal & Energy Engn, Hefei 230027, Anhui Province, Peoples R China
3.Peking Univ, Inst Microelect, Beijing 100871, Peoples R China
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Xu, JL,Gan, YH,Zhang, DC,et al. Microscale heat transfer enhancement using thermal boundary layer redeveloping concept[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2005,48(9):1662-1674.
APA Xu, JL,Gan, YH,Zhang, DC,&Li, XH.(2005).Microscale heat transfer enhancement using thermal boundary layer redeveloping concept.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,48(9),1662-1674.
MLA Xu, JL,et al."Microscale heat transfer enhancement using thermal boundary layer redeveloping concept".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 48.9(2005):1662-1674.
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