Negny, Stéphane and Meyer, Michel
and Prevost, Michel
Enhancement of absorption efficiency for a laminar film flow by hydrodynamic conditions generated by a new type of column wall.
(2001)
Biochemical Engineering Journal, 8 (1). 7-13 . ISSN 1385-8947
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 166kB |
Official URL: http://dx.doi.org/10.1016/S1385-8947(00)00189-3
Abstract
Anumerical model is developed to quantify the effects of hydrodynamics on heat and mass transfer during an absorption, for a laminar film flowing over awavywall column. First of all, the modelling is written for a singlewave of thewall shape. Then, an experimental set up, composed of aCCDvideo camera, validates this model. Finally, the model is extended to an entire column. The results include a comparison with the simulation of a smooth column having the same geometrical and operating conditions. Thewavy column dissipates more heat through the wall (43%) due to the presence of a vortex in the furrows. This leads to an increase of the absorptionrate at the interface (10%). Moreover, the wavy column reaches equilibrium more rapidly in spite of a lower mean film temperature.
Item Type: | Article |
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Additional Information: | Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Chemical Engineering Journal website : http://www.sciencedirect.com/science/journal/13858947 |
HAL Id: | hal-03604741 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) |
Laboratory name: | Laboratoire de Génie Chimique - LGC (Toulouse, France) - Réaction, mélange & séparation (RMS) |
Statistics: | download |
Deposited On: | 24 Oct 2008 09:19 |
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