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Calculation of multistage countercurrent separation processes—II multicomponent multistage separation by relaxation procedure

✍ Scribed by Jaroslav Jelínek; Vladimír Hlaváĉek; Milan Kubícěk


Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
545 KB
Volume
28
Category
Article
ISSN
0009-2509

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✦ Synopsis


The relaxation method used for solution of problems arising in design of multicomponent separation processes is discussed and new modifications are proposed. The use of certain techniques for convergence acceleration is studied. The number of iterations is then substantially reduced and effectiveness of relaxation method is thus highly improved.

This method is useful also for columns with multiple feeds, intercoolers etc., however, nonideal mixture can be conveniently handled. A modification of the relaxation procedure resulting in a pentadiagonal matrix is presented.


📜 SIMILAR VOLUMES


Calculation of multistage countercurrent
✍ Jaroslav Jelínek; Vladimír Hlaváček; Milan Kubíček 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 594 KB

The method proposed generates without trial-and-error a family of solutions depending on a sequence of values of a parameter under consideration, e.g. reflux ratio, side-stream flows, condenser duty etc. The technique may be successfully used for a parametric study of a particular column. The method

New simultaneous modular method for calc
✍ Z. Fonyo; H. Nishimura; Y. Yamashita 📂 Article 📅 1983 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 724 KB

A new flexible method has been developed for modelling multistage multicomponent separation processes. The method is based on the simultaneous modular approach and can be referred to as a quasilinear two-level modelling. The network is solved within each iteration as a linear one, and after each net