Thermodynamics and chemical systems stability: The CSTR case study revisited

被引：68

作者：

Favache, A. ^{[1
]}

Dochain, D. ^{[1
]}

机构：

[1] Univ Catholique Louvain, CESAME, B-1348 Louvain, Belgium

来源：

JOURNAL OF PROCESS CONTROL | 2009年 / 19卷 / 03期

关键词：

Thermodynamics; Entropy; Stability; Lyapunov; CSTR; IRREVERSIBLE THERMODYNAMICS; PASSIVITY; DYNAMICS; REACTOR;

D O I：

10.1016/j.jprocont.2008.07.007

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper is dedicated to the stability analysis of the Continuous Stirred Tank Reactor (CSTR) model by considering thermodynamics based arguments. Different Lyapunov function candidates related to the thermodynamics, more specifically based on the entropy, the entropy production and the internal energy, are considered. These provide new insight and physical interpretation in the stability/instability of the equilibrium points of the CSTR. This includes in particular extension of the results of Georgalkis [C. Georgakis, On the use of extensive variables in process dynamics and control, Chemical Engineering Science 41(6) (1986) 1471-1484] for less restrictive conditions on the system dynamics and thermodynamics, and invariants sets for the stable equilibrium points of the CSTR by considering an internal energy based Lyapunov function. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：371 / 379

页数：9

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