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    題名: Analysis of the slip effect on the permeate flux in membrane ultrafiltration
    作者: 葉和明;Yeh, Ho-ming;Cheng, Tung-wen
    貢獻者: 淡江大學化學工程與材料工程學系
    關鍵詞: Concentration polarization;Ultrafiltration;Slip velocity;Mass transfer
    日期: 1999-03-01
    上傳時間: 2009-11-04 15:56:18 (UTC+8)
    出版者: Amsterdam: Elsevier BV
    摘要: A method for predicting the mass transfer coefficient as well as the limiting permeate flux in membrane ultrafiltration has been found, based upon the boundary-layer theory which takes into account the slip velocity on the membrane surface. The theory presupposes the existence of a slip flow on a porous membrane surface, especially for the limiting permeate-flux operations. Further, the slip velocity increases with the size of the pores of the membrane, with feed velocity and also with feed concentration. The theory also showed that the permeate flux increases with the increase of the slip velocity. A considerable improvement in theoretical prediction of the permeate flux is expected if the slip flow effect is taken into consideration.
    關聯: Journal of Membrane Science 154(1), pp.41-51
    DOI: 10.1016/S0376-7388(98)00272-5
    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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