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    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/65520

    題名: Asymmetric wall heat fluxes boundary conditions in double-pass parallel-plate heat exchangers
    作者: Ho, Chii-Dong;Chen, Wei-Zum;Tu, Jr-Wei
    貢獻者: 淡江大學化學工程與材料工程學系
    關鍵詞: Asymmetric wall heat flux;Parallel-plate device;Double-pass;Conjugated Graetz problems
    日期: 2009-07-01
    上傳時間: 2011-10-21 16:37:35 (UTC+8)
    出版者: Kidlington: Pergamon
    摘要: Boundary conditions for asymmetric wall heat fluxes in double-pass parallel-plate laminar countercurrent operations are analyzed theoretically in this work by using an eigenfunction expansion in terms of power series for the homogeneous part and an asymptotic solution for the non-homogeneous part. Effects of variable ratio of heat fluxes on both sides and impermeable-sheet location are also studied. Quantitative and qualitative interpretations of theoretical predictions are utilized to investigate of heat-transfer efficiency enhancement of the double-pass model under consideration as compared to those in the single-pass operations without an impermeable sheet inserted. Results are presented in terms of Nusselt number and device performance improvement. The influence of the impermeable-sheet location on the heat-transfer efficiency enhancement as well as on the power consumption increment in double-pass operations has also been delineated.
    關聯: International Journal of Heat and Mass Transfer 52(15-16), pp.3555-3563
    DOI: 10.1016/j.ijheatmasstransfer.2009.02.038
    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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