NUMERICAL-STUDIES IN SOLVING DYNAMIC DISTILLATION PROBLEMS

被引：6
作者：
LAGAR, G
PALOSCHI, J
ROMAGNOLI, JA
机构：
[1] Planta Piloto de Ingenieriá Química, UNS-CONICET, 12 de Octubre, 1842 B. Blanca, Argentina
来源：
COMPUTERS & CHEMICAL ENGINEERING | 1987年 / 11卷 / 04期
关键词：
CHEMICAL OPERATIONS - Simulation - MATHEMATICAL TECHNIQUES - Differential Equations;
D O I：
10.1016/0098-1354(87)85019-6
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The eigenvalues of the Jacobian corresponding to the equations describing the dynamic behavior of a multicomponent distillation column are studied. An alternative estimation of the spectral radius is proposed and used to implement a policy to switch between non stiff and stiff integration method. Furthermore the sparse structure of the Jacobian is exploited to reduce computation costs. Comparative results are given using several multicomponent mixtures.
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收藏
页码：383 / 394
页数：12
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