哲 藤井

二成分混合蒸気の凝縮における気相境界層の代表物性値 : II 層流自由対流凝縮の場合

The numerical analysis is made for free-convection condensation of binary vapor mixtures quite similarly as the case of forced-convection condensation. The physical properties which are evaluated at the arithmetic mean of the mass concentrations at the vapor-liquid interface and the bulk and the corresponding saturation temperature are recommended as the representative ones in the case of the algebraic solution.

多成分混合気の平板上での層流膜状凝縮熱伝達の代数的予測法 : 第1報 強制対流凝縮の場合

Laminar forced convection film condensation of multicomponent mixtures on a flat plate is theoretically treated on the basis of two-phase boundary layer theory. The governing equations for the vapour boundary layer, which are coupled complicatedly with respect to concentration terms, are orthogonally transfomed to uncoupled equations similar to those of binary mixtures. Then, generalized simultaneous algebraic equations for predicting the heat and mass transfer characteristics of condensation of multicomponent mixtures are derived by applying the correlation equations for the boundary values of similarity solutions for binary mixtures.