Sintered porous medium heat sink for cooling of high-power mini-devices

被引：158

作者：

Hetsroni, G ^{[1
]}

Gurevich, M ^{[1
]}

Rozenblit, R ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Dept Mech Engn, IL-32000 Haifa, Israel

来源：

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | 2006年 / 27卷 / 02期

关键词：

sintered medium; porous; heat transfer; enhancement; drag reduction;

D O I：

10.1016/j.ijheatfluidflow.2005.08.005

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Heat transfer and pressure drop in a rectangular channel with sintered porous inserts, made of stainless steel of different porosity, were investigated experimentally. Heat flux up to 6 MW/m(2) was removed experimentally by using porous samples with porosity 32% and average pore diameter 20 mu m. Under this experimental condition, the difference between the temperatures of the wall and the bulk water did not exceed of 55 K with a pressure drop of 4.5 bars. The generalization of data on heat transfer in a low porosity sintered stainless steel media, based on the permeability as scale of length and the effective thermal conductivity, was considered. An estimate of a heat sink efficiency using sintered porous material for cooling high-power mini-devices and comparing it with one for such modern porous media as compressed aluminum foams was done. (c) 2005 Elsevier Inc. All rights reserved.

引用

页码：259 / 266

页数：8

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