English  |  正體中文  |  简体中文  |  Items with full text/Total items : 56826/90592 (63%)
Visitors : 12128541      Online Users : 96
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/19482

    Title: Prediction of permeate flux for ultrafiltration in wire–rod tubular-membrane modules
    Authors: 葉和明;Yeh, Ho-ming;Dong, J. F.;Hsieh, M. J.;Yang, C. C.
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: Ultrafiltration;Declination behaviours;Tubular membrane;Wired rod;Optimal wire angle
    Date: 2002-11-01
    Issue Date: 2009-11-04 15:58:58 (UTC+8)
    Publisher: Amsterdam: Elsevier
    Abstract: Predicting equations for the permeate flux of membrane ultrafiltration in wire–rod tubular modules were derived from momentum and mass balances based on the resistance-in-series model, coupled with the considerations of declinations of flow rate and transmembrane pressure along the membrane tubes. Experimental work for the ultrafiltration of dextran 500 aqueous solution was carried out in a ceramic microporous tube with a twisted wire–rod assembly. Correlation predictions are in better agreement with the experimental results than those predicted in previous works where the flow rate was simply taken with the arithmetic-mean value. The effect of wire angle of inclination on the performance was also discussed. Increasing the wire angle of inclination will increase the fluid velocity in the spiral channel. Actually, the increase of fluid velocity has two conflict effects on permeation: one is decreasing the concentration polarisation which is good for ultrafiltration, while the other is reducing the transmembrane pressure which is bad for performance. It was found that the optimal wire angle of inclination for maximum average permeate flux exists between 45 and 50° in the system of present interest.
    Relation: Journal of Membrane Science 209(1), pp.19-26
    DOI: 10.1016/S0376-7388(01)00796-7
    Appears in Collections:[化學工程與材料工程學系暨研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat
    0376-7388_209(1)p19-26.pdf158KbAdobe PDF289View/Open

    All items in 機構典藏 are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback