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    題名: Improvement in performance on laminar counterflow concentric circular heat exchangers with external refluxes
    作者: 何啟東;Ho, Chii-dong;葉和明;Yeh, Ho-ming;Yang, Wen-yi
    貢獻者: 淡江大學化學工程與材料工程學系
    日期: 2002-08
    上傳時間: 2009-11-04 15:54:03 (UTC+8)
    出版者: Kidlington: Elsevier
    摘要: 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.
    關聯: International Journal of Heat and Mass Transfer 45(17), pp.3559-3569
    DOI: 10.1016/S0017-9310(02)00072-8
    顯示於類別:[化學工程與材料工程學系暨研究所] 期刊論文

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