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Fluid dynamics analysis of a draft-tube continuous spouted bed with particles bottom feed using CFD / Cezar A. da Rosa in Industrial & engineering chemistry research, Vol. 48 N° 16 (Août 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 16 (Août 2009) . - pp. 7813–7820 Titre : Fluid dynamics analysis of a draft-tube continuous spouted bed with particles bottom feed using CFD Type de document : texte imprimé Auteurs : Cezar A. da Rosa, Auteur ; José T. Freire, Auteur Année de publication : 2009 Article en page(s) : pp. 7813–7820 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Draft  tube  continuous  spouted  bed  Bottom  feed  Computational  fluid  dynamics Résumé : In this work the fluid dynamics behavior of a draft tube continuous spouted bed with particle bottom feed was studied through experimental data of static pressure, fountain height, and fluid mass flow in the annulus, as well as using the computational fluid dynamics. Experiments using glass beads as solid phase were carried out in two different velocity inlet conditions, 20 and 22 m/s. The inlet solid mass flow rate was 0.087 kg/s for the first case and 0.097 kg/s for the second one. Static pressure measurements were done in axial and radial coordinates for the entire equipment. The fountain height and fluid mass flow in the annulus were also evaluated during experiments. The Eulerian−Eulerian multifluid modeling approach was applied to predict gas−solid flow behavior. The Gidaspow (1994) drag model and the granular kinetic theory derived by Lun et al. (1984) were adopted here. A commercially available program, FLUENT 6.3, was chosen to carry out computer simulations. CFD simulations were able to predict very well the static pressure profile, fountain height, and fluid mass flow in the annulus. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900547u [article] Fluid dynamics analysis of a draft-tube continuous spouted bed with particles bottom feed using CFD [texte imprimé] / Cezar A. da Rosa, Auteur ; José T. Freire, Auteur . - 2009 . - pp. 7813–7820. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 16 (Août 2009) . - pp. 7813–7820 Mots-clés : Draft  tube  continuous  spouted  bed  Bottom  feed  Computational  fluid  dynamics Résumé : In this work the fluid dynamics behavior of a draft tube continuous spouted bed with particle bottom feed was studied through experimental data of static pressure, fountain height, and fluid mass flow in the annulus, as well as using the computational fluid dynamics. Experiments using glass beads as solid phase were carried out in two different velocity inlet conditions, 20 and 22 m/s. The inlet solid mass flow rate was 0.087 kg/s for the first case and 0.097 kg/s for the second one. Static pressure measurements were done in axial and radial coordinates for the entire equipment. The fountain height and fluid mass flow in the annulus were also evaluated during experiments. The Eulerian−Eulerian multifluid modeling approach was applied to predict gas−solid flow behavior. The Gidaspow (1994) drag model and the granular kinetic theory derived by Lun et al. (1984) were adopted here. A commercially available program, FLUENT 6.3, was chosen to carry out computer simulations. CFD simulations were able to predict very well the static pressure profile, fountain height, and fluid mass flow in the annulus. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900547u