Lachin, Kevin and Le Sauze, Nathalie
and Di Miceli Raimondi, Nathalie
and Aubin, Joelle
and Fletcher, David F. and Cabassud, Michel
and Gourdon, Christophe
Towards the design of an intensified coagulator.
(2017)
Chemical Engineering and Processing, 121. 1-14. ISSN 0255-2701
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 642kB |
Official URL: https://dx.doi.org/10.1016/j.cep.2017.08.003
Abstract
This study compares the hydrodynamics in three millimeter-scale continuous reactor geometries that can be easily used in laboratories and industries – a straight tube, a coiled tube and a Dean-Hex reactor – via numerical simulations and analyses the data in a way that is specifically relevant to coagulation processes, thereby offering insights for engineers to develop new coagulation reactors. A numerical approach based on Lagrangian particle tracking is presented to better understand the impact of the geometry and flow on properties that influence coagulation. The results show that the Dean-Hex meandering geometry provides narrower residence time and shear rate distributions, as well as higher mean average shear rates and Camp number distribution than the other geometries. This is attributed to the generation of transverse flows and radial mixing in the Dean-Hex reactor and suggests that a faster and more homogenous coagulation can be expected.
Item Type: | Article |
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Additional Information: | Thanks to Elsevier editor. The original PDF of the article can be found at Chemical Engineering and Processing website : https://www.sciencedirect.com/science/article/pii/S0255270117305809?via%3Dihub |
HAL Id: | hal-01769569 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) Other partners > University of Sydney (AUSTRALIA) |
Laboratory name: | |
Funders: | French National Research Agency (ANR) |
Statistics: | download |
Deposited On: | 18 Apr 2018 08:49 |
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