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    題名: Simplified analysis of the enrichment of heavy water in a batch thermal-diffusion column
    作者: 葉和明;Yeh, Ho-ming;何啟東;Ho, Chii-dong;Huang, Wei-kuo;Yan, Yu-long
    關鍵詞: Batch type;Separation;Thermal diffusion;Water isotopes
    日期: 1999-08-09
    上傳時間: 2009-11-04 16:03:09 (UTC+8)
    出版者: Kidlington: Pergamon Press
    摘要: 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.
    關聯: Separation and Purification Technology 16(3), pp.205-211
    DOI: 10.1016/S1383-5866(99)00010-6
    顯示於類別:[化學工程與材料工程學系暨研究所] 期刊論文

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