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Three – dimensional water vapor visualization in porous packing by near - infrared diffuse transmittance tomography / Méabh Nic An tSaoir in Industrial & engineering chemistry research, Vol. 51 N° 26 (Juillet 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 8875-8882 Titre : Three – dimensional water vapor visualization in porous packing by near - infrared diffuse transmittance tomography Type de document : texte imprimé Auteurs : Méabh Nic An tSaoir, Auteur ; Daniel Luis Abreu Fernandes, Auteur ; Jacinto Sá, Auteur Année de publication : 2012 Article en page(s) : pp. 8875-8882 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Tomography  Water  vapor Résumé : This work presents a procedure based on two-dimensional and three-dimensional spatially resolved near-infrared imaging to observe temperature and composition maps in gas―solid packed beds subjected to effects of aspect ratio and nonisothermal conditions. The technique was applied to the water vapor flow in a fluidized bed and a packed bed reactor and confirmed uneven water vapor flow channeling and temperature distributions in the core packed bed and in the vicinity of the wall due to flow maldistribution. In addition, the heat uptake and local cross-mixing were experimentally ascertained. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26107442 [article] Three – dimensional water vapor visualization in porous packing by near - infrared diffuse transmittance tomography [texte imprimé] / Méabh Nic An tSaoir, Auteur ; Daniel Luis Abreu Fernandes, Auteur ; Jacinto Sá, Auteur . - 2012 . - pp. 8875-8882. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 8875-8882 Mots-clés : Tomography  Water  vapor Résumé : This work presents a procedure based on two-dimensional and three-dimensional spatially resolved near-infrared imaging to observe temperature and composition maps in gas―solid packed beds subjected to effects of aspect ratio and nonisothermal conditions. The technique was applied to the water vapor flow in a fluidized bed and a packed bed reactor and confirmed uneven water vapor flow channeling and temperature distributions in the core packed bed and in the vicinity of the wall due to flow maldistribution. In addition, the heat uptake and local cross-mixing were experimentally ascertained. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26107442