２成分混合蒸気の分縮に関する解析

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  • Analytical study of partial condenser for binary vapor mixture.
  • 2 セイブン コンゴウ ジョウキ ノ ブンシュク ニ カンスル カイセキ

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A theoretical analysis of the partial condenser is proposed. Based on the two-film theory, its feature lies in expressing the vapor or liquid composition in the condenser related to the local flow rate of condensate. The results are more comprehensive for use in design calculation than are those of previous investigators, since the position in the condenser can be related and other there are analytical advantages. For the case of the linear equilibrium relation, the solution is given with two parameters : the mass transfer resistance ratio of liquid to vapor phases and the ratio of the condensation flux to the overall mass transfer coefficient. The well-known Rayleigh solution and another extreme case where the mass transfer resistances in both the liquid and vapor phases vanish are explained in relation to the solutions.<BR>A numerical example on the operating line in a partial condenser is shown. The present method gives reasonable results compared with the few other methods.

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