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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Veröffentlicht in:Modeling, identification and control identification and control, 2001-04, Vol.22 (2), p.103-118
Hauptverfasser: FOSS, Bjarne A, WASBØ, Stein O
Format: Artikel
Sprache:eng
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Zusammenfassung: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