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Effect of porosity on circle grid perforated plate performance as a static mixer in laminar flow

Manshoor, Bukhari and Mat Loddin, Mohd Zamadi and Khalid, Amir and Zaman, Izzuddin (2015) Effect of porosity on circle grid perforated plate performance as a static mixer in laminar flow. In: International Conference on Application and design in Mechanical Engineering 2015 (ICADME 2015), 30-31 March 2015, Georgetown, Penang, Malaysia.

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Abstract

Mixing is one of the important processes to the many industries. Fluid mixing process typically involves three phases of fluid in the form of liquids, gases and solids. To obtain a desired type of mixing, one of the devices that can be use is a static mixer. In this study, a perforated plate static mixer with circle grid fractal design with two grades of porosity which are 50% and 75% will introduce. The purpose of implementing the hvo grades porosity of perforated plate in this study is to determine a performance of the two static mixers. In order to achieve the objective, the simulations of mixing fluid were carried out by using ANSYS CFX software. The simulation was carrying out primarily cylindrical pipe with insertions of circle grid perforated plate. Three levels of laminar flow had been used which is Reynolds numbers (Re) equal to 100, 200 and 400. The performance of circle grid perforated plate static mixer will be evaluated by determining the Coefiic~enot f Variat~on( COV). The simulat~onre sults also were compared m term of homogeneity level of mixing fluids to the Kenics static mixer. Based on the simulation results, the value of COV at selected plane in pipeline simulated for Kenics static mixer and the two grades porosity of perforated plate at Re = 400 are 0.000703, 0.0247and 0.00427 respectively. Since the values of COV between 0.01 and 0.05 are a reasonable target for many industry applications, the results for new approach of static mixer represent completely homogeneous mixing fluid for this application. Definitely this new approach of circle grid perforated plate with fiactal design gave better results because of lower number of inserts and simple design of static mixer

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: computational fluid dynamics; fractal plate; laminar flow; mixing
Subjects: Q Science > QA Mathematics > QA801 Analytic mechanics
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Plant and Automotive Engineering
Depositing User: Mrs. Nurhayati Ali
Date Deposited: 13 May 2015 04:22
Last Modified: 13 May 2015 04:22
URI: http://eprints.uthm.edu.my/id/eprint/6864
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