An integration scheme for stiff solid-gas reactor models

Many dynamic models encounter numerical integration problems because of a large span in the dynamic modes. In this paper we develop a numerical integration scheme for systems that include a gas phase, and solid and liquid phases, such as a gas-solid reactor. The method is based on neglecting fast dy...

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Bibliographic Details
Published inModeling, identification and control Vol. 22; no. 2; pp. 103 - 118
Main Authors FOSS, Bjarne A, WASBØ, Stein O
Format Journal Article
LanguageEnglish
Published Oslo Research Council of Norway 01.04.2001
Norwegian Society of Automatic Control
Subjects
Applied sciences
Devices using thermal energy
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Furnaces
numerical integration
Stiff systems
Numerical integration
Algebraic equation
Gas solid
Dynamic model
Electrochemical reactor
Metallurgical furnace
Modeling
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Summary:Many dynamic models encounter numerical integration problems because of a large span in the dynamic modes. In this paper we develop a numerical integration scheme for systems that include a gas phase, and solid and liquid phases, such as a gas-solid reactor. The method is based on neglecting fast dynamic modes and exploiting the structure of the algebraic equations. The integration method is suitable for a large class of industrially relevant systems. The methodology has proven remarkably efficient. It has in practice performed excellent and been a key factor for the success of the industrial simulator for electrochemical furnaces for ferro-alloy production.
ISSN:0332-7353
1890-1328
DOI:10.4173/mic.2001.2.4