Linking power and flow in rotor-stator mixers

T.P. John; J.S. Panesar; A. Kowalski; T.L. Rodgers; C. P. Fonte

doi:10.1016/j.ces.2019.06.039

Linking power and flow in rotor-stator mixers

T.P. John, J.S. Panesar, A. Kowalski, T.L. Rodgers, C. P. Fonte

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Abstract

The relationship between power and flow characteristics of batch rotor-stator mixers has been studied using CFD simulations with experimental power validation. The mixer studied was the Silverson L5M batch mixer with the standard emulsor head. The size of the holes in the screen and the constriction of the base hole were changed in small increments. The MRF technique was used to model rotor rotation. A model is developed in this study which links the power and flow numbers of the mixer. Since power is easy to measure experimentally, one can use this model to predict the flow number by measuring torque. A second model is also developed which allows one to predict the flow number using solely the geometry of the mixing head. This study greatly enhances our understanding of the relationship between power, flow and mixer geometry in rotor-stator mixers.

Original language	English
Pages (from-to)	504-515
Number of pages	12
Journal	Chemical Engineering Science
Volume	207
Early online date	24 Jun 2019
DOIs	https://doi.org/10.1016/j.ces.2019.06.039
Publication status	Published - 24 Jun 2019

Keywords

Rotor-stator
Mixing
Power number
Flow number
CFD

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10.1016/j.ces.2019.06.039

Final versionAccepted author manuscript, 1.73 MBLicence: CC BY-NC-ND

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title = "Linking power and flow in rotor-stator mixers",

abstract = "The relationship between power and flow characteristics of batch rotor-stator mixers has been studied using CFD simulations with experimental power validation. The mixer studied was the Silverson L5M batch mixer with the standard emulsor head. The size of the holes in the screen and the constriction of the base hole were changed in small increments. The MRF technique was used to model rotor rotation. A model is developed in this study which links the power and flow numbers of the mixer. Since power is easy to measure experimentally, one can use this model to predict the flow number by measuring torque. A second model is also developed which allows one to predict the flow number using solely the geometry of the mixing head. This study greatly enhances our understanding of the relationship between power, flow and mixer geometry in rotor-stator mixers.",

keywords = "Rotor-stator, Mixing, Power number, Flow number, CFD",

author = "T.P. John and J.S. Panesar and A. Kowalski and T.L. Rodgers and {P. Fonte}, C.",

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TY - JOUR

T1 - Linking power and flow in rotor-stator mixers

AU - John, T.P.

AU - Panesar, J.S.

AU - Kowalski, A.

AU - Rodgers, T.L.

AU - P. Fonte, C.

PY - 2019/6/24

Y1 - 2019/6/24

N2 - The relationship between power and flow characteristics of batch rotor-stator mixers has been studied using CFD simulations with experimental power validation. The mixer studied was the Silverson L5M batch mixer with the standard emulsor head. The size of the holes in the screen and the constriction of the base hole were changed in small increments. The MRF technique was used to model rotor rotation. A model is developed in this study which links the power and flow numbers of the mixer. Since power is easy to measure experimentally, one can use this model to predict the flow number by measuring torque. A second model is also developed which allows one to predict the flow number using solely the geometry of the mixing head. This study greatly enhances our understanding of the relationship between power, flow and mixer geometry in rotor-stator mixers.

AB - The relationship between power and flow characteristics of batch rotor-stator mixers has been studied using CFD simulations with experimental power validation. The mixer studied was the Silverson L5M batch mixer with the standard emulsor head. The size of the holes in the screen and the constriction of the base hole were changed in small increments. The MRF technique was used to model rotor rotation. A model is developed in this study which links the power and flow numbers of the mixer. Since power is easy to measure experimentally, one can use this model to predict the flow number by measuring torque. A second model is also developed which allows one to predict the flow number using solely the geometry of the mixing head. This study greatly enhances our understanding of the relationship between power, flow and mixer geometry in rotor-stator mixers.

KW - Rotor-stator

KW - Mixing

KW - Power number

KW - Flow number

KW - CFD

U2 - 10.1016/j.ces.2019.06.039

DO - 10.1016/j.ces.2019.06.039

M3 - Article

SN - 0009-2509

VL - 207

SP - 504

EP - 515

JO - Chemical Engineering Science

JF - Chemical Engineering Science

ER -

Linking power and flow in rotor-stator mixers

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Keywords

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