English  |  正體中文  |  简体中文  |  Items with full text/Total items : 25398/25993 (98%)
Visitors : 6189861      Online Users : 32
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU 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://ir.lib.ksu.edu.tw/handle/987654321/3255


    Title: 燃料電池多孔電極波形流道設計與實驗
    Authors: 吳澤松
    Keywords: PEMFC
    數值模擬
    波型流道
    the numerical simulation
    the wave channel
    Date: 2005-10-13
    Issue Date: 2009-08-13 23:52:11 (UTC+8)
    Abstract: 本文主要針對PEMFC 內部之流道設計,利用數值模擬,討論其對於燃料在流道內的流動擴散影響。模擬方式以控制體積法為基礎,配合有限差分法及冪次法則來離散成差分方程式。並採用SIMPLE 運算法則求解壓力-速度結合的問題。研究內容以波型流道為主,探討波數改變以及波型的振幅大小對於燃料流動擴散之影響。模擬分析結果中可以發現,波數對於燃料的流動擴散有明顯的影響,較多的波型可以有效增加燃料流動進入擴散層進一步進行反應,在較多波數時進口速度的配合條件同時相對重要。另波型振幅的大小在0.5 流道寬時對於燃料擴散有較好的效果。This study is to discuss and flow the diffusion of the fuel in the flow channel bynumerical simulation for the channel design of PEMFC. The simulation method solved bycontrol-volume method based on finite-different method with power-low scheme. TheSIMPLE algorithm is adopted to solve the pressure and velocity coupling.The contents of the study focused in the wave flow channel research the flow anddiffusible effects in the fuel by the number and of amplitude of the wave. The results for thesimulation indicate that the wave number of the channel has a significant effect of the fuel.More wave of the channel can tend to the gas diffusion layer and cause the reactions. The inletvelocity is more important for the more wave channel. And the amplitude of the 0.5 channelwidth has the more effects for the diffusion.
    Appears in Collections:[機械工程系所] 研究計畫

    Files in This Item:

    File Description SizeFormat
    932212E168007.pdf326KbAdobe PDF278View/Open


    All items in KSUIR are protected by copyright, with all rights reserved.


    本網站之所有圖文內容授權為崑山科技大學圖書資訊館所有,請勿任意轉載或擷取使用。
    ©Kun Shan University Library and Information Center
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback