期刊
TRANSPORT IN POROUS MEDIA
卷 43, 期 2, 页码 377-394出版社
SPRINGER
DOI: 10.1023/A:1010780623891
关键词
thermal conductivity; high porosity; graphite; composite; tortuosity; dispersed phase
The heat transfer in a highly conductive material constituted by a graphite matrix in which a granular phase is dispersed is studied. The effective thermal conductivity of this anisotropic porous composite medium used in solid-gas reactors can vary largely with the component fractions. The effect of the dispersed grains on the deformable structure of the matrix is considered. A model developed on the basis of thermal tortuosity by analogy with mass transfer is adequately correlated with experimental results.
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