Biomass combustion in a fluidized-bed system / Vikranth Kumar Surasani in Industrial & engineering chemistry research, Vol. 50 N° 17 (Septembre 2011)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 50 N° 17 (Septembre 2011) . - pp. 9936-9943 Titre : Biomass combustion in a fluidized-bed system : an integrated model for dynamic plant simulations Type de document : texte imprimé Auteurs : Vikranth Kumar Surasani, Auteur ; Franka Kretschmer, Auteur ; Patric Heidecke, Auteur Année de publication : 2011 Article en page(s) : pp. 9936-9943 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Modeling Fluidized bed Fluidization Combustion Biomass Résumé : A model that can be used for dynamic simulation of fluidized-bed biomass combustion plants is presented. The model combines spatially concentrated (well-mixed) approaches for the fluidized bed and the ash separation cyclone with a one-dimensional plug-flow representation of the freeboard section. Simulation results are compared with steady-state experimental data for wood combustion in a laboratory-scale facility. Computed flue gas compositions are in good agreement with measured values, whereas some deviation is observed in fluidized-bed temperature. The integrated model provides reasonable accuracy at a high computational speed. Hence, it is appropriate, after coupling with a thermodynamic cycle, for real-time monitoring and control of distribution nets and electric grids supplied byvarious regenerative power sources. Possible model extension by a population balance for the fuel particles is briefly outlined. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24483637 [article] Biomass combustion in a fluidized-bed system : an integrated model for dynamic plant simulations [texte imprimé] / Vikranth Kumar Surasani, Auteur ; Franka Kretschmer, Auteur ; Patric Heidecke, Auteur . - 2011 . - pp. 9936-9943. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 17 (Septembre 2011) . - pp. 9936-9943 Mots-clés : Modeling Fluidized bed Fluidization Combustion Biomass Résumé : A model that can be used for dynamic simulation of fluidized-bed biomass combustion plants is presented. The model combines spatially concentrated (well-mixed) approaches for the fluidized bed and the ash separation cyclone with a one-dimensional plug-flow representation of the freeboard section. Simulation results are compared with steady-state experimental data for wood combustion in a laboratory-scale facility. Computed flue gas compositions are in good agreement with measured values, whereas some deviation is observed in fluidized-bed temperature. The integrated model provides reasonable accuracy at a high computational speed. Hence, it is appropriate, after coupling with a thermodynamic cycle, for real-time monitoring and control of distribution nets and electric grids supplied byvarious regenerative power sources. Possible model extension by a population balance for the fuel particles is briefly outlined. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24483637

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