文章基本信息

标题：A Non-equilibrium Approach to Model Flash Dynamics with Interface Transport
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作者：Aarón Romo-Hernandez ; Denis Dochain ; B. Erik Ydstie 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2018
卷号：51
期号：18
页码：874-879
DOI：10.1016/j.ifacol.2018.09.239
语种：English
出版社：Elsevier
摘要：AbstractThis paper presents a modeling approach for a class of multiphase chemical systems, based on non-equilibrium thermodynamics, specialized to an open flash-drum system. A compartmental model is considered to establish the dynamics of the gas and liquid phases, while a model of interface transport yields to constraints in the model. The overall system is thus written as a Differential-Algebraic system of Equations (DAE). The derived model is shown to be of index one, for which a stability analysis, based on Lyapunov first method, is briefly developed. An example is presented to illustrate the proposed modeling and stability analysis approach, together with numerical simulations.
关键词：KeywordsNon-equilibrium thermodynamicsIrreversible thermodynamicsMultiphase systemsDifferential-algebraic nonlinear systemsFlash-drum dynamicsLyapunov stability