English  |  正體中文  |  简体中文  |  Items with full text/Total items : 66984/66984 (100%)
Visitors : 22931893      Online Users : 214
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.ncu.edu.tw/handle/987654321/51904


    Title: A SEMI-EXPERIENTIAL ELECTRICAL EQUIVALENT CIRCUIT FOR MODELING THE ANODE IMPEDANCE OF A DIRECT METHANOL FUEL CELL USING A RATIONAL FUNCTION
    Authors: Yang,SH;Chen,CY;Hsu,CH;Wang,WJ;Chou,PH
    Contributors: 電機工程學系
    Keywords: LINEAR-SYSTEMS;AC-IMPEDANCE;OPTIMIZATION;SPECTROSCOPY;PERFORMANCE;DMFC;RESISTANCE;OXIDATION;CATHODE;TRANSFORMATION
    Date: 2010
    Issue Date: 2012-03-28 10:10:02 (UTC+8)
    Publisher: 國立中央大學
    Abstract: In this paper, a new electrical equivalent circuit (EEC) suitable for the simulation of the electrochemical impedance spectroscopy (EIS) of a direct methanol fuel cell (DMFC) anode is developed from a rational mathematical function. Applying the criterion for estimating the orders of polynomials, the suitable rational function with the smallest simulation error and the prevention of over-modeling dynamics is theorized from the rational function which was transformed from the conventional EEC. Incorporating the specific electrical component for interpreting the physicochemical phenomena of methanol oxidation reaction (MOR) in a DMFC anode, the suitable rational function is transformed into a semi-experiential EEC taking into account the anode/membrane interface, the porosity of the catalyst layer, and the gas diffusion layer (GDL). The differences of the anode EIS between the kinetics of the MOR at various operating conditions are utilized to clarify the efficiency of the EEC simulation. A comparison with the conventional EECs verifies the accuracy of this semi-experiential EEC for modeling the anode impedance spectrum. Furthermore, the variance between the fitting values of the electrical components, corresponding to the physicochemical characteristics of the MOB., demonstrates the reliability of applying this semi-experiential EEC to analyze the anode impedance of a DMFC during the practical operation.
    Relation: INTERNATIONAL JOURNAL OF INNOVATIVE COMPUTING INFORMATION AND CONTROL
    Appears in Collections:[電機工程學系] 期刊論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML212View/Open


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

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明