English  |  正體中文  |  简体中文  |  Items with full text/Total items : 57980/91504 (63%)
Visitors : 13698565      Online Users : 60
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/987654321/55023

    Title: Modeling of mass transfer Graetz problems in flat-plate thermal-diffusion columns for heavy water enrichment
    Authors: Yeh, Ho-ming;Ho, Chii-dong;Wang, Chiung-jeng;Tu,Jr-wei;Guo, Jia-jan
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: Mathematical modeling;Separation;Mass transfer;Thermal diffusion;Graetz problems
    Date: 2011-01-01
    Issue Date: 2011-08-09 15:07:55 (UTC+8)
    Publisher: Amsterdam: Elsevier BV
    Abstract: The mass transfer Graetz problem of flat-plate thermal-diffusion columns for heavy water enrichment was investigated. An orthogonal expansion technique was used to solve the laminar counter-current flat-plate thermal-diffusion column separation problems under flow-rate fraction variations and feed position. The present theoretical predictions for the degree of separation were solved based on the separation variable method. Positive and negative eigen-values are needed for the enriching and stripping sections, respectively, during the calculation procedure. The results show that the degree of separation increases with decreasing the feed flow rate and the maximum degree of separation is obtained for feed positions δ=0.5 and feed concentration CF=0.385. Moreover, the theoretical predictions are in better agreement with the experimental results than those predicted using the transport equation in the previous works.
    Relation: Journal of the Taiwan Institute of Chemical Engineers 42(1), pp.50-57
    DOI: 10.1016/j.jtice.2010.03.016
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

    Files in This Item:

    File SizeFormat

    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