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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/110083


    Title: Recycle Effect on Double-Pass Parallel-Plate Mass Exchangers under Asymmetric Uniform Wall Concentrations
    Authors: Chii-Dong Ho;Chi-Chin Kuo;Cheng-Yi Lin;Jr-Wei Tu
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: Mass Transfer;Recycle Effect;Double-Pass Operation;Conjugated Graetz Problems;Asymmetric System
    Date: 2013-09-20
    Issue Date: 2017-03-23 02:10:51 (UTC+8)
    Publisher: Kagaku Kogaku Kyokai,Society of Chemical Engineers, Japan
    Abstract: The application of the recycle-effect concept to a double-pass parallel-plate mass exchanger under asymmetric uniform wall concentrations is proposed to enhance device performance. An analytical analysis of the Sherwood number and mass-transfer efficiency improvement is developed, and the theoretical predictions are represented graphically and compared with those in single-pass devices without inserting a permeable membrane. A considerable mass-transfer efficiency improvement is obtained by employing such a recyclic design with a suitable adjustment of the permeable-membrane location and recycle ratio, instead of using the single-pass device without external recycle. The results show that the recyclic double-pass operation can effectively improve the mass transfer efficiency, especially as the device is operated in the larger mass-transfer Graetz number.
    Relation: Journal of Chemical Engineering of Japan 46(9), p.583-587
    DOI: 10.1252/jcej.13we126
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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