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Modelling of Three Phase System with Non-Newtonian Liquid Using Computational Fluid Dynamics Model

Abdulbari, Hayder A. and Kwaire, Asawer A. and Falih, Hussain M. (2009) Modelling of Three Phase System with Non-Newtonian Liquid Using Computational Fluid Dynamics Model. Asian Journal of Industrial Engineering, 1 (1). pp. 12-20. ISSN 1996-3386

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Abstract

A 2 dimensional numerical simulation was used to describe the flow behaviour and circulation pattern of three phase system inside an isothermal slurry bubble column using a finite volume technique. The three phase system consists of; air as the gas phase, non-Newtonian solution of poly acryl amid (PAA) as the liquid phase, and alumina catalyst as the solid phase. To experimentally validate the code, local gas hold-up and bubble characteristics have been measured using a modified electrocondactivity probe. The model was based on the principle of continuity and momentum equations. The gas and liquid velocity were prescribed numerically and the gas velocity simulated agrees with experimental observation. The experimental results as well as the numerical results show that the gas velocity decreases with increasing the non-Newtonian behaviour of the system and this may due to the increasing in bubble coalescence.

Item Type: Article
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Noorul Farina Arifin
Date Deposited: 16 Jul 2014 03:21
Last Modified: 11 Jan 2018 06:07
URI: http://umpir.ump.edu.my/id/eprint/6201
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