淡江大學機構典藏:Item 987654321/75004
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    题名: CFD analysis of the initial stages of particle deposition in spiral-wound membrane modules
    作者: Li, Yu-ling;Tung, Kuo-lun;Chen, Yu-shao;Hwang, Kuo-jen
    贡献者: 淡江大學化學工程與材料工程學系
    关键词: Membrane module;Curvature;CFD;Spacer;Particle deposition
    日期: 2012-02-15
    上传时间: 2012-03-02 10:45:10 (UTC+8)
    出版者: Amsterdam: Elsevier BV
    摘要: Particle deposition in a spiral-wound membrane module was simulated using computational fluid dynamics (CFD). A scheme similar to the Eulerian–Lagrangian numerical method was adopted for the two-phase flow simulation. The effect of curvature on particle transport in four spacer-filled channel configurations with permeable membrane surfaces was analyzed by considering the fluid drag, body force and lift force exerted on the particles. The numerical results showed that there are inherent changes in the particle deposition profile in the spacer-filled channel due to variations in curvature. Comparing the particle deposition profiles and deposition ratios for submerged, zigzag, i-cavity and o-cavity spacer-filled channels showed that, for a given feed velocity and permeation rate, the zigzag-type spacer is best at decreasing the influence of curvature and preventing particle fouling on the membrane. A microscopic understanding derived from the CFD analysis could improve module design and enhance membrane module performance.
    關聯: Desalination 287, pp.200–208
    DOI: 10.1016/j.desal.2011.10.001
    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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