淡江大學機構典藏:Item 987654321/4165
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    题名: Enrichment of heavy water in spiral wired thermal diffusion columns of the frazier scheme
    作者: Yeh, Ho-ming
    贡献者: 淡江大學化學工程與材料工程學系
    关键词: Diffusion columns;Cascades (fluid mechanics);Heat convection;Mixing;Separation;Thermal diffusion;Heavy water;diffusion;heavy water;liquid-liquid separation;nuclear application
    日期: 2002-03
    上传时间: 2013-03-12 11:21:56 (UTC+8)
    出版者: Amsterdam: Elsevier BV
    摘要: 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.
    本文推介福雷茲型螺旋捆線熱擴散中提煉重水之分離理論,並推導獲得最大分離度,最大產率及最小塔長之最佳捆線角度的計算式。在最佳捆線角度之操作下,可適當調節並控制對流強度,遂而壓制不良之再混和效應,並保留有利之續流效應,終於獲得相當程度之效率改進。
    關聯: Journal of the Chinese Institute of Chemical Engineers=中國化學工程學會會誌 33(2), pp.203-210
    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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