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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/4165

    Title: Enrichment of heavy water in spiral wired thermal diffusion columns of the frazier scheme
    Authors: Yeh, Ho-ming
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: Diffusion columns;Cascades (fluid mechanics);Heat convection;Mixing;Separation;Thermal diffusion;Heavy water;diffusion;heavy water;liquid-liquid separation;nuclear application
    Date: 2002-03
    Issue Date: 2013-03-12 11:21:56 (UTC+8)
    Publisher: Amsterdam: Elsevier BV
    Abstract: A separation theory for the enrichment of heavy water in the Frazier scheme of concentric-tube thermal diffusion columns with a tight fitting wire spiral, having a diameter equal to the annular spacing, wrapped on the entire inner tube, has been developed. Equations for the best wire angle of inclination for maximum separation, maximum production rate and minimum column height have been derived. Considerable improvement in performance is obtainable if the wire spiral is employed in the column at the optimum angle, instead of the absence of wire spiral, so that the convection strength can be properly reduced and controlled, resulting in suppression of the undesirable remixing effect while still preserving the desirable cascading effect.
    Relation: Journal of the Chinese Institute of Chemical Engineers=中國化學工程學會會誌 33(2), pp.203-210
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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