Simulation of resistance of cross-flow microfiltration and force analysis on membrane surface

淡江大學機構典藏 > 工學院 > 化學工程與材料工程學系暨研究所 > 期刊論文 > Item 987654321/53724

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题名:	Simulation of resistance of cross-flow microfiltration and force analysis on membrane surface
作者:	Lee, Kuo-Jen;Wu, Rome-Ming
贡献者:	淡江大學化學工程與材料工程學系
关键词:	Simulation;Cross-flow filtration;Fouling;Membrane;Microfiltration
日期:	2008-12
上传时间:	2011-05-20 09:57:00 (UTC+8)
出版者:	Amsterdam: Elsevier BV
摘要:	The major factors influencing cake formation and the overall filtration resistance were the hydrodynamic forces exerted on the membrane. Therefore, the filtration rate increased with the increase of the cross-flow velocity and filtration pressure under a wide range of conditions. In this work the cross-flow microfiltration was simulated by water flow through a porous medium. The bulk flow and flow in porous medium were governed by Navier-Stokes and Darcy equations. The overall resistance of filtration and hydrodynamic shear force exerted on the membrane surface were calculated and integrated. The shear force analysis on the membrane surface is a tool for decaying fouling rate on the membrane and improving the efficiency of the cross-flow microfiltration. This CFD-aided design could help to effectively increase the permeate flux, reduce the fouling on the membrane and extend the washing cycle during filtration.
關聯:	Desalination 233(1-3), pp.239-246
DOI:	10.1016/j.desal.2007.09.048
显示于类别:	[化學工程與材料工程學系暨研究所] 期刊論文

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