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    题名: Sinusoidal Wall Fluxes in Double-Pass Laminar Counterflow Concentric-Tube Mass Exchangers
    作者: Ho, Chii-dong;Tu, Jr-wei;Liu, Li-chien
    贡献者: 淡江大學化學工程與材料工程學系
    关键词: Sinusoidal Wall Mass Flux;Double-Pass Operation;Concentric Circular Mass Exchanger;Conjugated Graetz Problems
    日期: 2008-12-20
    上传时间: 2011-10-21 16:31:24 (UTC+8)
    出版者: Kagaku Kogaku Kyokai,Society of Chemical Engineers, Japan
    摘要: A new device, known as a double-pass counterflow mass exchanger, is a circular tube divided by inserting a permeable barrier in parallel into two subchannels with sinusoidal wall fluxes, resulting in considerable improvement of the device performance in mass transfer compared with that in an open conduit. An analytical method is proposed to predict the concentration distribution and mass-transfer efficiency enhancement by setting a general solution form for the laminar double-pass counterflow concentric-tube mass exchangers with sinusoidal wall fluxes. Theoretical results show that a suitable adjustment of the permeable-barrier position can effectively enhance the mass transfer rate, leading to an improved device performance. The effects of the permeable-barrier location on the mass-transfer efficiency improvement and power consumption increment, as indicated from theoretical predictions, have also been delineated. One may follow the procedure described in the present paper and determine the economical feasibility for each particular application in operating double-pass devices.
    關聯: Journal of Chemical Engineering of Japan 41(12), pp.1083-1095
    DOI: 10.1252/jcej.08we118
    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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