alexa Droplet Size Distribution in a Kenics Static Mixer: CFD Simulation and Experimental Investigation of Emulsions
ISSN: 2157-7048

Journal of Chemical Engineering & Process Technology
Open Access

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Research Article

Droplet Size Distribution in a Kenics Static Mixer: CFD Simulation and Experimental Investigation of Emulsions

Farzi GA1*, Reza-Zadeh N2 and Parsian Nejad A2
1Material and Polymer Engineering Department, Hakim Sabzevari University, Sabzevar, Iran
2Mechanical Engineering Department, Hakim Sabzevari University, Sabzevar, Iran
Corresponding Author : Farzi GA
Material and Polymer Engineering Department
Hakim Sabzevari University, Sabzevar, Iran
Tel: 989373537388
E-mail: [email protected]
Received June 02, 2014; Accepted July 22, 2014; Published July 25, 2014
Citation: Farzi GA, Reza-Zadeh N, Parsian Nejad A (2014) Droplet Size Distribution in a Kenics Static Mixer: CFD Simulation and Experimental Investigation of Emulsions. J Chem Eng Process Technol 5:201. doi:10.4172/2157-7048.1000201
Copyright: © 2014 Farzi GA, et al.. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

The minimum achievable droplet sizes created by a simple in-line Kenics Static Mixer (KSM) under various flow rates and mixing time in oil in water (O/W) emulsion were investigated through turbulent flow system. First, a Computational Fluid Dynamics (CFD) method is utilized to predict final droplet sizes in different Reynolds number. Then, an experimental setup was used in order to validate CFD results. The droplet size was monitored using Dynamic Light Scattering (DLS) technique by means of a Malvern zetasizer machine. Breakup/coalescence of droplets under constant volume fractions of oil was studied when flow rate was varied from 36.7 to 85 ml/s. Results showed that droplet size distribution highly depends on flow rate and mixing time. Droplets break more easily and faster at higher flow rates. The results proved that the obtaining small enough droplets using static mixer in less than 40 minutes at the flow rates above 36.7 ml/s at moderate concentration of oil volume fraction.

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