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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/9758

    Title: The influences of recycle on a double-pass laminar counterflow concentric-tube heat exchangers with sinusoidal wall fluxes
    Authors: 謝聰烈
    Chii-Dong Ho;Tsung-Lieh Hsien;Hsuan Chang;Jr-Wei Tua;Chih-Ming Yang
    Contributor: 電機工程系
    Keywords: Sinusoidal heat fluxes
    Heat transfer
    Recycle effect
    Double-pass operation
    Concentric heat exchanger
    Date: 2009-12-21
    Issue Date: 2010-04-21 16:03:27 (UTC+8)
    Abstract: The effects of external recycle at the ends on double-pass laminar countercurrent heat exchangers with
    sinusoidal heat flux distribution are investigated analytically by setting a general solution to separate the
    original boundary value problem into a partial differential equation, which is solved by Frobenius method,
    and an ordinary differential equation. Analytical results show that recycle effects enhance the heat-transfer
    efficiency due to that the desirable effect of forced-convection increment has more influence than the
    undesirable effect of the heat-transfer driving-force decrement, and hence the forced-convection increment
    by increasing the recycle ratio leads to improved device performance in heat-transfer rate as compared with
    that in the single-pass operation (without an impermeable sheet inserted).
    Relation: International Communications in Heat and Mass Transfer 36 (2009) 579–584
    Appears in Collections:[電機工程系所] 期刊論文

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