Study on the effect of current collector structures on the performance of MCFCs using three-dimensional fluid dynamics analysis

Chang Whan Lee, Mihui Lee, Sung Pil Yoon, Hyung Chul Ham, Sun Hee Choi, Jonghee Han, Suk Woo Nam, Dong Yol Yang

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)

    Abstract

    The effect of current collectors of molten carbonate fuel cells (MCFCs) was studied through three-dimensional computational fluid dynamics and experiments. Three types of current collectors such as a sheet with sheared protrusions and perforated sheets were employed and performances of MCFCs were compared. A current collector structure with a large gas open area to electrodes improves diffusion characteristics between electrodes and gas flow channels. As a result, differences of gas mole fractions between gas flow channels and electrodes were decreased. Finally, Nernst loss and cathode polarization loss decreased, and the performance was enhanced. Using these results, current collector structures for improved performance and long-term operation were discussed.

    Original languageEnglish
    Pages (from-to)153-161
    Number of pages9
    JournalJournal of Industrial and Engineering Chemistry
    Volume51
    DOIs
    Publication statusPublished - 2017 Jul 25

    Bibliographical note

    Publisher Copyright:
    © 2017 The Korean Society of Industrial and Engineering Chemistry

    Keywords

    • CFD
    • Current collector
    • MCFC
    • Polarization

    ASJC Scopus subject areas

    • General Chemical Engineering

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