614 多孔体内の気相一方物質移動における圧力・濃度分布の簡易推算法(多孔体乾燥中の温度推算への適用)(GS-6 熱工学(1))

概要

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A new approximated expression for non-isobaric unidirectional gas transfer caused by molecular diffusion, viscous and Knudsen flow has been formulated. The new approximated expression is a combination of the unidirectional isobaric diffusion equation within free space and the Darcy flow equation. The equations were derived from strict equations for one-dimensional binary component isothermal gas transfer within porous media that was modeled by the parallel pore model. It was shown that the calculation results, calculated by strict equations and by approximated equations, were in agreement. In addition, the temperature and pressure, at the inner evaporative surface of the porous material during drying in hot humid air, were predicted by the new approximated expression, and the effect of air humidity on material temperature was investigated.
一般社団法人日本機械学会の論文
2004-03-17