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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/19463

    Title: Improvement in performance on laminar counterflow concentric circular heat exchangers with external refluxes
    Authors: 何啟東;Ho, Chii-dong;葉和明;Yeh, Ho-ming;Yang, Wen-yi
    Contributors: 淡江大學化學工程與材料工程學系
    Date: 2002-08
    Issue Date: 2009-11-04 15:54:03 (UTC+8)
    Publisher: Kidlington: Elsevier
    Abstract: Considerable improvement of heat transfer in laminar counterflow concentric heat exchangers is obtainable by inserting in parallel an impermeable, resistless sheet to divide an open duct into two subchannels for double-pass operations with external refluxes. Efficiency improvement in heat transfer has been investigated analytically by using an orthogonal expansion technique. The results of improvement in heat transfer efficiency are represented graphically and compared with those in a single-pass operation. The influences of improvement-sheet location and reflux ratio on the enhancement of transfer efficiency as well as on the increment of power consumption have been discussed.
    Relation: International Journal of Heat and Mass Transfer 45(17), pp.3559-3569
    DOI: 10.1016/S0017-9310(02)00072-8
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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