Number：

04095006

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Name：

曾憲中

Titles：

Associate professor

Author：

Sheng-Chung Tzeng and Hung-Ju Liao

Paper name：

Heat Transfer in aluminum foam heat sink using a sintered porous

conductive pipe

Name of activity：

2006 第五屆精密製造學術研討會

Keywords：Spatial thermal regulation, Porous medium, Heat sink, heat transfer

Abstract：The work investigated the spatial thermal regulation of  an  aluminum  foam  heat  sink  using  a high-conductivity conductivity conductive pipe. The fluid medium was  air. The test specimens where measured in fourmodes – without a conductive pipe (A), with a copper conductive pipe (B), with are gaps in the front and rearparts of the porous conductive pipe (C) and with lateral arc gaps beside the porous conductive pipe (D) The range of Reynolds number was Re=883 ~ 4416. Local and average Nusselt numbers were examined. The experimental results indicate that the conductive pipein an aluminum foam heat sink was very effective in spatial thermal regulation. Especially in mode D with lateral arc gaps, which were approximately along the stream-wise axis, beside the conductive pipe. However, using the conductive pipe in the aluminum foam heat sink studied herein did not promote overall heat transfer.

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