Determination of Mixing Times with Helical Ribbon Impeller for Non‐Newtonian Viscous Fluids Using an Advanced Imaging Method |
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| Authors: | R. P. Chhabra L. Bouvier G. Delaplace G. Cuvelier S. Domenek C. André |
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| Affiliation: | 1. Department of Chemical Engineering, Indian Institute of Technology, Kanpur, India;2. Laboratoire de Génie des Procédés et Technologies Alimentaires, Villeneuve D'Ascq, France;3. Science de l'Aliment et de l'Emballage, AgroParisTech, Massy, France;4. Hautes Etudes Ingénieurs, Laboratoire de Génie de Procédés, Lille, France |
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| Abstract: | New results on mixing times for viscous Newtonian and non‐Newtonian fluids being homogenized with a helical ribbon impeller are presented. In particular, a recently developed technique to determine the macromixing kinetics of an impeller in a transparent vessel was applied to investigate the effects of rheological properties on mixing times. Significant differences were observed in the mixing times for viscous Newtonian and non‐Newtonian fluids. Based on the new data obtained in this work, a correlation incorporating the elastic effects is proposed in terms of a Weissenberg number for predicting the mixing time as a function of the Reynolds number and the system geometry. |
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| Keywords: | Helical Ribbon Impeller Mixing Times Non‐Newtonian Fluids Viscous Fluids |
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