Documents disponibles écrits par cet auteur

Multiscale simulation of the indirect internal reforming unit (IIR) in a molten carbonate fuel cell (MCFC) / Matthias Pfafferodt in Industrial & engineering chemistry research, Vol. 47 N° 13 (Juillet 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N° 13 (Juillet 2008) . - p. 4332–4341 Titre : Multiscale simulation of the indirect internal reforming unit (IIR) in a molten carbonate fuel cell (MCFC) Type de document : texte imprimé Auteurs : Matthias Pfafferodt, Auteur ; Peter Heidebrecht, Auteur ; Kai Sundmacher, Auteur ; Uwe Würtenberger, Auteur Année de publication : 2008 Article en page(s) : p. 4332–4341 Note générale : Bibliogr. p. 4341 Langues : Anglais (eng) Mots-clés : Indirect  internal  reforming;  Heat  transport;  Molten  carbonate  fuel  cell Résumé : This paper studies the coupled mass and heat transport as well as the reactions in an indirect internal reforming (IIR) unit of a molten carbonate fuel cell (MCFC). The aims of the work are first to identify the dominating transport processes for a specific design. Because the temperature field is one major issue in MCFCs, the second aim is to predict the spatially distributed temperature field within the unit. In a first step, several variants of a microscale model, describing only a small detail of the IIR unit, are created. The governing equations and the boundary conditions of this model are given. The results of these simulations, especially the temperature and concentration distributions, are discussed. They show that the gas phase is divided into a reactive and a nonreactive zone in the actual design of the IIR and the reforming process is dominated by mass transfer between these zones. In a second step, a macroscale model of the entire IIR unit is presented. It considers a simplified geometry, but it incorporates the two gas zones identified by the microscale model. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800290h [article] Multiscale simulation of the indirect internal reforming unit (IIR) in a molten carbonate fuel cell (MCFC) [texte imprimé] / Matthias Pfafferodt, Auteur ; Peter Heidebrecht, Auteur ; Kai Sundmacher, Auteur ; Uwe Würtenberger, Auteur . - 2008 . - p. 4332–4341. Bibliogr. p. 4341 Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N° 13 (Juillet 2008) . - p. 4332–4341 Mots-clés : Indirect  internal  reforming;  Heat  transport;  Molten  carbonate  fuel  cell Résumé : This paper studies the coupled mass and heat transport as well as the reactions in an indirect internal reforming (IIR) unit of a molten carbonate fuel cell (MCFC). The aims of the work are first to identify the dominating transport processes for a specific design. Because the temperature field is one major issue in MCFCs, the second aim is to predict the spatially distributed temperature field within the unit. In a first step, several variants of a microscale model, describing only a small detail of the IIR unit, are created. The governing equations and the boundary conditions of this model are given. The results of these simulations, especially the temperature and concentration distributions, are discussed. They show that the gas phase is divided into a reactive and a nonreactive zone in the actual design of the IIR and the reforming process is dominated by mass transfer between these zones. In a second step, a macroscale model of the entire IIR unit is presented. It considers a simplified geometry, but it incorporates the two gas zones identified by the microscale model. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800290h