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標題: 流道設計對微流道熱沉性能提升之實驗研究
Experimental Study of Microchannel Geometry on the Microchannel Heat Sink Performance Enhancement
作者: 蕭心端
Shiao, Shin-Duan
關鍵字: 微流道;parallel channel heat sink (PCHS);熱沉;熱阻;溫度均勻化;obstructive channel heat sink (OCHS);Pin fin heat sink (PFHS);thermal resistance;temperature uniformity
出版社: 機械工程學系所
引用: [1] D. B. Tuckerman, R. F. Pease, High-Performance Heat Sink for VLSI, IEEE Electron. Dev. Lett. EDL-2 (1981) 126-129. [2] L. Meysenc, L. Saludjian, A. Bricard, S. Rael, C. Schaeffer, A High Heat Flux IGBT Micro Exchanger Setup, IEEE Transactions on Components Packaging and Manufacturing Technology, Part A 20 ,(1997)334-341. [3] Phillips, R. J, Master’s Thesis, Massachusetts Institute of Technology, (1987). [4] C. S. Landram, Computational Model for Optimising Longi-tudinal Fin Heat Transfer in Laminar Flows, Heat Transfer in Electronic Equipment,171 ASME(1991). [5] R. W. Knight, D. J. Hall, J. S. Goodling, R. C. Jaeger, Heat Sink Optimization with Application to Microchannels, IEEE Transactions on Components Hybrids and Manufacturing Technology,15(5)Oct.(1992)832- 842. [6] J. Li, G. P. Peterson, Geometry Optimization of a Micro Heat Sink With Liquid Flow, IEEE Transfer on Components and Packaging Technologies ,29(1)March (2006)145-154. [7] P. S. Lee, J. C, Ho, Experimental Study on Laminar Heat Transfer in Microchannel Heat Sink, IEEE Inter Society Conference in Thermal Phenomena, (2002)379- 386. [8] Z. Wen, C. K. Fah, The Optimum Thermal Design of Microchannel Heat Sinks, IEEE/CPMT Electronic Packaging Technology Conference, (1997)123-129. [9] H. Y. Wu, P. Cheng, An Experimental Study of Convection Heat Transfer in Silicon Microchannels With Different Surface Conditions, Int. J. Heat and Mass Transfer, 46(2003)2547-2556. [10] S. S. Hsieh, L. Chih-Yi, Liquid Flow in a Microchannel, Journal of Micromechanics and MicroEngineering, J. Micromech. Microeng., 14(4) April(2004)436–445. [11] 陳中舜,“矽質微流道熱散性能測試與分析,” 淡江大學碩 士,1997.
本研究之熱沉為結構分別為平行流道PCHS(parallel channel heat sink,PCHS),壁面具凸出物之平行微流道(staggered obstruction heat sink,SOHS)以及多重入出口之微針狀鰭片陣列MPFHS(Multi Pin-fin heat sink,MPFHS)測試之結果顯示,在相同操作條件下,MPFHS之性能優於PCHS及SOHS,此結果顯示,提升熱沉流場之熱沉改變有助於提升熱傳係數及改善熱沉之性能。

In this study,performances of two types of microscale heat sinks based on the modifications from the conventional parallel channel heat sink (PCHS) are studied
experimentally。By referring the walls that separating the channels in PCHS as the plate fins,the first type of
modified heat sinks involves placing obstacles alternatively on the plate fins. As a result,the original parallel channels in PCHS become winded。This type of heat sink is referred to as the obstructive channel heat sink (OCHS)。It is intended to enhance the heat transfer coefficient by the flow disruption in this heat sink design。In the second type of heat sink,the plate fins are cut into segments and arranged in staggered form。This results in the plate fins in the original parallel heat
sink been modified to a staggered arranged pin fin array and the heat sink is referred as the pin fin heat sink (PFHS)。Since the transverse fluid flow in pin fin array is
allowed,the PFHS is designed to have two inlets and two outlets to enhance heat transfer coefficient。The heat sink base plate temperature uniformity,thermal resistance,and pressure drop across the heat sink are the three parameters used to evaluate the performances
of the heat sinks studied。For all these three parameters,the experimental results show that the PFHS can provide best temperature uniformity,lowest thermal resistance and
lowest pressure drop among the three heat sink designs in this study。
其他識別: U0005-1408200618113800
Appears in Collections:機械工程學系所

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