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Evaporative cooling of water in a rotating packed bed (Split Packing) / Bhattacharya, S. in Industrial & engineering chemistry research, Vol. 49 N° 2 (Janvier 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 2 (Janvier 2010) . - pp 847–851 Titre : Evaporative cooling of water in a rotating packed bed (Split Packing) Type de document : texte imprimé Auteurs : Bhattacharya, S., Auteur ; Mondal, A., Auteur ; Bhowal, A., Auteur Année de publication : 2010 Article en page(s) : pp 847–851 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Rotating  packed  bed  Mass-transfer  processes. Résumé : Rotating packed beds (RPB) have been studied for intensifying mass-transfer processes. This work was undertaken to evaluate the thermal performance of an RPB with split packing for evaporative cooling of water involving simultaneous heat and mass transfer. Higher efficiency was achieved within a smaller contactor volume compared to mechanical draft cooling towers. At all values of the liquid-to-air flow rate ratio studied, efficiency was not significantly affected by rotor speed and decreased with increasing rotor speed beyond a certain limit at low air and water flow rates. A simple mathematical model was used to estimate process parameters from the experimental data based on the Merkel assumption. The hGa/kYaCs ratio varied between 0.85 and 1.18, and the tower characteristic of the RPB was between 1.4 and 4.0. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901207m [article] Evaporative cooling of water in a rotating packed bed (Split Packing) [texte imprimé] / Bhattacharya, S., Auteur ; Mondal, A., Auteur ; Bhowal, A., Auteur . - 2010 . - pp 847–851. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 2 (Janvier 2010) . - pp 847–851 Mots-clés : Rotating  packed  bed  Mass-transfer  processes. Résumé : Rotating packed beds (RPB) have been studied for intensifying mass-transfer processes. This work was undertaken to evaluate the thermal performance of an RPB with split packing for evaporative cooling of water involving simultaneous heat and mass transfer. Higher efficiency was achieved within a smaller contactor volume compared to mechanical draft cooling towers. At all values of the liquid-to-air flow rate ratio studied, efficiency was not significantly affected by rotor speed and decreased with increasing rotor speed beyond a certain limit at low air and water flow rates. A simple mathematical model was used to estimate process parameters from the experimental data based on the Merkel assumption. The hGa/kYaCs ratio varied between 0.85 and 1.18, and the tower characteristic of the RPB was between 1.4 and 4.0. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901207m