Title :

An analytical model for the prediction of power consumption for shear-thinning fluids with helical ribbon and helical screw ribbon impellers

Author(s) :

Delaplace, Guillaume [Auteur correspondant]
Laboratoire de Génie des Procédés et Technologie Alimentaires [LGPTA]
Guérin, Romuald [Auteur]
Laboratoire de Génie des Procédés et Technologie Alimentaires [LGPTA]
Leuliet, Jean Claude [Auteur]
Laboratoire de Génie des Procédés et Technologie Alimentaires [LGPTA]
Chhabra, Raj P. [Auteur]

Journal title :

Chemical Engineering Science

Volume number :

61

Pages :

3250-3259

Publisher :

Elsevier

Publication date :

2006

ISSN :

0009-2509

English keyword(s) :

Non-Newtonian
Helical ribbon impellers
Helical screw ribbon impellers
Mixing
Power consumption

HAL domain(s) :

Sciences du Vivant [q-bio]
Physique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
Sciences de l'ingénieur [physics]/Génie des procédés
Sciences du Vivant [q-bio]/Ingénierie des aliments
Sciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire/Biologie moléculaire

English abstract : [en]

An approximate analytical model has been developed to predict power consumption for the mixing of shear-thinning fluids with helical ribbon and helical screw ribbon impellers in the laminar flow regime. Extensive data on ...
Show more >An approximate analytical model has been developed to predict power consumption for the mixing of shear-thinning fluids with helical ribbon and helical screw ribbon impellers in the laminar flow regime. Extensive data on power input measurements embracing a wide range of flow behaviour index, with strong (n < 0.4) and weak (0.4 <n< 1) shear-thinning fluid characteristics, available in the literature have been used to demonstrate the applicability of the present model for a wide range of helical ribbon mixer configurations. The model is able to explain the differences in the data reported in the existing literature and to successfully predict the complex dependence of power consumption on the fluid properties and the system geometry. Finally, the proposed correlation only requires a knowledge of the flow behaviour index of the fluid and of the geometrical parameters of the mixing systems (wall clearance, number of ribbons, pitch and width of the ribbons) and one characteristic parameter Kp of the mixing system which can be obtained from a single measurement of power for Newtonian liquids in the laminar regime.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Related reference(s) :

https://www.journals.elsevier.com/chemical-engineering-science

Administrative institution(s) :

ENSCL
Université de Lille
CNRS
INRA

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Processus aux Interfaces et Hygiène des Matériaux (PIHM)

Submission date :

2022-02-01T13:14:43Z
2022-02-03T15:11:14Z