EFFECTIVE THERMAL CONDUCTIVITY OF BINARY MIXTURES AT HIGH SOLID TO GAS CONDUCTIVITY RATIOS
作者:
P. ADNANI,
I. CATTON,
A.R. RAFFRAY,
M.A. ABDOU,
期刊:
Chemical Engineering Communications
(Taylor Available online 1993)
卷期:
Volume 120,
issue 1
页码: 45-58
ISSN:0098-6445
年代: 1993
DOI:10.1080/00986449308936123
出版商: Taylor & Francis Group
关键词: Thermal conductivity;Binary mixtures;High solid-to-gas conductivity ratios;Influence of gas pressure;Correlation for binary mixtures
数据来源: Taylor
摘要:
The effective thermal conductivity of single size and binary mixtures of packed particle beds with stagnant gas at high solid/gas conductivity ratios is determined by a deterministic, unit cell approach. The model results are shown to be in good agreement with experimental data for various gas pressures and solid to gas thermal conductivity ratios up to 1300. A set of correlations for effective conductivity of binary mixtures as a function of gas pressure and particle size is derived. The effect of particle swelling on the effective conductivity of binary mixtures is studied by performing a parametric study of the contact area between the particles
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