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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/79323


    Title: 外加側流之管式膜過濾
    Other Titles: Tubular menbrane filtration with side-stream
    Authors: 林佑儒;Lin, Yu-ju;温鉦晏;Wen, Jheng-yan;吳容銘;Wu, Rome-ming
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: 管式膜過濾;側流;模擬;tubular-membrane;filtration;side-stream;simu lation
    Date: 2008-09
    Issue Date: 2012-12-03 22:05:57 (UTC+8)
    Publisher: 臺北市:行政院國家科學委員會
    Abstract: 管式膜過濾已廣泛的被使用在固液分離程序上,
    管式膜過濾組之改良將有助於提高分離效率,並且節
    省操作成本。本實驗室利用模擬方式,建立出模組的構
    造型態、空間網格,以及邊界條件之設定。在模組中的
    速度流場、整體的過濾阻力以及在膜面上的剪應力分布
    均可藉由模擬計算出,並與實驗相互對應。在模擬方
    面,發現在掃流過濾程序中加入一道外加側流,將有助
    於膜面上之剪應力提昇。因此,在管式膜膜組之改良方
    面,於設計中加入了側流 (side stream, SD) 的概念,
    即於管式模組之殼側導入一物流,企圖能達到濾速提升
    之效果。實驗方面,利用外加側流之管式膜過濾實驗,
    探討側流操作對濾速之影響。Tubular filtration is commonly used In
    solid-liquid separation process. The improvement of
    tubular filtration models helps raise separation efficiency
    and saves operation cost. This experiment uses a filter
    membrane, made of Zirconia, with a mean pore size of
    3 .51lm PMMA particles. We study the effects of changes in
    suspension concentration, transmembrane pressure,
    cross-flow velocity, etc. on filtration rate. Also, we use
    Computational Fluid Dynamics, CFD, Software Fluent 6.2 to simulate changes in shear-stress on the surface of the
    membrane to discover tubular-membrane filtration with
    side-stream, which raises filtration rate and shear-stress on
    the membrane, also removing fouling on the membrane
    surface.
    Relation: 2008年輸送現象及其應用研討會論文摘要集 ( 2008 Symposium of transport phenomena and applications abstract book)
    Appears in Collections:[化學工程與材料工程學系暨研究所] 會議論文

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