Effective thermal conductivity of water-saturated sintered powder-metal plates

被引：29
|
作者：
Atabaki, N. [1 ]
Baliga, B. R. [1 ]
机构：
[1] McGill Univ, Dept Mech Engn, Heat Transfer Lab, Montreal, PQ H3A 2K6, Canada
来源：
HEAT AND MASS TRANSFER | 2007年 / 44卷 / 01期
关键词：
D O I：
10.1007/s00231-007-0229-8
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
An experimental apparatus and related procedures for the determination of the effective thermal conductivity of sintered powder-metal plates saturated with distilled water at temperatures in the range 20-150 degrees C are discussed. The apparatus and procedures are applied to two samples of sintered powder-metal plates, one made of nickel 200 and the other of stainless steel 316, with porosities of 28.10 and 46.45%, respectively, and each of nominal dimensions 127 mm x 127 mm x 6.35 mm. The experimental results are compared with corresponding predictions yielded by several correlations available in the literature. The correlations based on experimental data for packed beds of spherical particles and also porous plates made of cold-pressed (but not sintered) particles of angular shapes do not apply well to sintered powder-metal plates. A new correlation, which is based on extensions of ideas contained in earlier works and provides improved predictions, is proposed.
引用
收藏
页码：85 / 99
页数：15
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