Estimating correlations for the effective thermal conductivity of granular materials

被引：166

作者：

Gonzo, EE ^{[1
]}

机构：

[1] Univ Nacl Salta, CONICET, UNSa, INIQUI,Fac Engn, RA-1774400 Buenos Aires, DF, Argentina

来源：

CHEMICAL ENGINEERING JOURNAL | 2002年 / 90卷 / 03期

关键词：

effective conductivity; granular materials; dispersions of spheres; porous pellet conductivity;

D O I：

10.1016/S1385-8947(02)00121-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Based on the well-known solution of Maxwell [1] for the thermal conductivity of dilute dispersions of spheres and the improved form of Maxwell's equation developed by Chiew and Glandt [2], two general correlation for k(eff) estimation are proposed. One of them apply to medium dense dispersions (0.15 less than or equal to phi greater than or equal to 0.85) and the other one for dense porous materials (phi > 0.9). Both correlating equations encompass a wide range of phase conductivity ratio values. The comparison with experimental measurements shows very good agreement. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：299 / 302

页数：4

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