種々の冶金用多孔質体のガス拡散および粘性流に関する構造因子と気孔構造の関係

概要

論文の詳細を見る
Structure parameters of gas transport (D'Arcy flow, Knudsen diffusion and molecular diffusion) through porous media such as coke, reduced iron and graphite mainly used in metallurgical fields and glass filter having different structures from the metallurgical materials were predicted by mathematical models taking account of pore size distribution. They were compared with the values obtained from the measurements of isobaric binary diffusion and permeation of pure gases by the Wicke-Kallenbach method. Either predicted parameter was found to be larger than the measured one by more than one order except for the glass filter. The inconsistency for Knudsen and molecular diffusion appears to be attributed to the lack of information especially as to the existing ratio of "dead ended pore" and that for D'Arcy flow will be due to the difference of hydrodynamic factors such as irregularity of the shape of the pore.structure parametersgas transportD'Arcy flowKnudsen diffusionmolecular diffusionporous mediacokereduced irongraphiteglass filterdead ended poreWicke-Kallenbach method
東北大学の論文
1986-09-30