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Modeling of heat uptake and release with embedded phase-change materials in monolithic microfluidized bed reactors / Akash Mittal in Industrial & engineering chemistry research, Vol. 49 N° 3 (Fevrier 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1086–1097 Titre : Modeling of heat uptake and release with embedded phase-change materials in monolithic microfluidized bed reactors Type de document : texte imprimé Auteurs : Akash Mittal, Auteur ; Shantanu Roy, Auteur ; Faïçal Larachi, Auteur Année de publication : 2010 Article en page(s) : pp. 1086–1097 Note générale : Industrial Industrial Langues : Anglais (eng) Mots-clés : Heat--Uptake--Modeling--Release--Embedded--Phase-Change--Reactors--Microfluidized--Monolithic--Bed Résumé : An innovative process concept for biomass gasification is proposed, which involves a combination of gasification and combustion reactions in a monolithic structured reactor by using high-temperature phase-change materials to intensify the process heat management. In this paper we specifically look at the heat transport problem, dynamics of which drives the overall dynamics of the proposed process concept. Exploiting the large “separation of scales” between the axial and radial coordinates, we have addressed the modeling problem at the corresponding scales with a simplified, one-dimensional dynamic model in the reactor (axial) scale and a detailed dynamic finite element method (FEM) model at the channel (radial) scale. This contribution relates to the latter model, wherein we have investigated the effect of various controlling physical parameters as well and geometrical and configurational aspects. Finally, we identify ways in which such a process concept may be optimized. Note de contenu : Bibiogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9007425 [article] Modeling of heat uptake and release with embedded phase-change materials in monolithic microfluidized bed reactors [texte imprimé] / Akash Mittal, Auteur ; Shantanu Roy, Auteur ; Faïçal Larachi, Auteur . - 2010 . - pp. 1086–1097. Industrial Industrial Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1086–1097 Mots-clés : Heat--Uptake--Modeling--Release--Embedded--Phase-Change--Reactors--Microfluidized--Monolithic--Bed Résumé : An innovative process concept for biomass gasification is proposed, which involves a combination of gasification and combustion reactions in a monolithic structured reactor by using high-temperature phase-change materials to intensify the process heat management. In this paper we specifically look at the heat transport problem, dynamics of which drives the overall dynamics of the proposed process concept. Exploiting the large “separation of scales” between the axial and radial coordinates, we have addressed the modeling problem at the corresponding scales with a simplified, one-dimensional dynamic model in the reactor (axial) scale and a detailed dynamic finite element method (FEM) model at the channel (radial) scale. This contribution relates to the latter model, wherein we have investigated the effect of various controlling physical parameters as well and geometrical and configurational aspects. Finally, we identify ways in which such a process concept may be optimized. Note de contenu : Bibiogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9007425