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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/75821

    Title: Modeling and Simulation of Double-Pass Parallel-Plate Mass Exchangers under Asymmetric Wall Concentrations
    Authors: Ho, Chii-dong;Kuo, Chi-chin;Chang, Cheng-liang;Chen, Yih-hang;Tu, Jr-wei
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: Mass Transfer;Double-Pass Operations;Device Performance;Conjugated Graetz Problems;Asymmetric Wall Concentrations
    Date: 2011-12-20
    Issue Date: 2012-04-17 12:10:21 (UTC+8)
    Publisher: Kagaku Kogaku Kyokai,Society of Chemical Engineers, Japan
    Abstract: A double-pass parallel-plate mass exchanger under asymmetric wall concentrations is designed by inserting in parallel a permeable membrane to improve the device performance. A mathematical model was formulated theoretically for such double-pass forced-convection mass exchangers, as referred to conjugated Graetz problems. Linear superposition was introduced to analytical solutions of the resultant partial differential equations, which consists of an inhomogeneous solution with respect to the non-homogeneous boundary condition and a homogeneous solution is obtained with the use of an eigenfunction expansion in a power series. The analytical results show that the mass transfer efficiency of this double-pass parallel-plate mass exchanger is considerably enhanced as compared to that of a single-pass device by suitably adjusting the permeable-membrane position. Economic consideration in terms of the mass transfer efficiency and power consumption increment for double-pass operation is presented.
    Relation: Journal of Chemical Engineering of Japan 44(12), pp.919-930
    DOI: 10.1252/jcej.11we037
    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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