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    题名: Modeling of Conjugated Heat Transfer in Direct-Contact Membrane Distillation of Seawater Desalination Systems
    作者: Ho, Chii-Dong;Yang, Tzu-Jing;Wang, Bo-Cheng
    贡献者: 淡江大學化學工程與材料工程學系;淡江大學化學學系
    关键词: Conjugated Graetz problems;Desalination;Direct-contact membrane distillation;Heat transfer
    日期: 2012/10/01
    上传时间: 2013-03-11 15:38:22 (UTC+8)
    出版者: Weinheim: Wiley - V C H Verlag GmbH & Co. KGaA
    摘要: The modeling equations for the temperature distribution and temperature polarization profiles in a laminar concurrent-flow parallel-plate direct-contact membrane distillation (DCMD) module were developed theoretically. The analytical solutions for such conjugated Graetz problems in DCMD systems were obtained using the variable separation method with an orthogonal expansion technique extended in power series. A description of the average Nusselt number variations and temperature distributions of both the hot and cold feed streams is given. The feed velocity effect on the temperature profiles and average Nusselt number was examined and is reported by employing the computed eigenvalues and the relevant constants. The analytical results show that the initial saline temperature effect on the hot feed stream regarding the pure water productivity is more significant than that of the hot and cold feed stream velocity variations.
    關聯: Chemical Engineering & Technology 35(10), pp.1765–1776
    DOI: 10.1002/ceat.201100586
    显示于类别:[化學工程與材料工程學系暨研究所] 期刊論文
    [化學學系暨研究所] 期刊論文


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