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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/19497


    Title: Simplified analysis of the enrichment of heavy water in a batch thermal-diffusion column
    Authors: 葉和明;Yeh, Ho-ming;何啟東;Ho, Chii-dong;Huang, Wei-kuo;Yan, Yu-long
    Keywords: Batch type;Separation;Thermal diffusion;Water isotopes
    Date: 1999-08-09
    Issue Date: 2009-11-04 16:03:09 (UTC+8)
    Publisher: Kidlington: Pergamon Press
    Abstract: The enhancement of mass transfer in double-pass countercurrent-flow parallel-plate mass exchangers with uniform wall concentration and external refluxes at the ends has been developed by either inserting an impermeable sheet or preferably inserting a permeable barrier. The analytical treatment was carried out by the orthogonal expansion technique with the assumptions of fully developed laminar flow and constant fluid properties. Considerable improvement in mass transfer is obtainable by employing double-pass devices with a permeable barrier instead of using double-pass devices with an impermeable sheet and single-pass devices. Analytical results also show that the reflux ratio and permeable-barrier (or impermeable-sheet) position are two important manipulated parameters resulting in substantial improvement of the mass-transfer efficiency compared with that in single-pass operations.
    Relation: Separation and Purification Technology 16(3), pp.205-211
    DOI: 10.1016/S1383-5866(99)00010-6
    Appears in Collections:[化學工程與材料工程學系暨研究所] 期刊論文

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