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Thermo-electrical instabilities arising in proton exchange membrane of fuel cell

机译:燃料电池质子交换膜中产生的热电不稳定性

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摘要

A thermo-electrical model of fuel cell proton exchange membrane is developed and the stability of the system is studied. The marginal curves have been obtained as a function of governed dimensionless parameters. The determined dimensionless parameters allow analyzing different scenarios of non-controlled membrane heating. It has been shown that a positive thermo-electrical feedback can cause instability development and membrane damage in real systems. Recommendations for the improvement of heat management in fuel cells have been proposed using the provided stability study. In particular, it has been demonstrated that decreasing of gas diffusion layer thickness has positive effect and stabilizes the system.
机译:建立了燃料电池质子交换膜的热电模型,研究了系统的稳定性。已获得边际曲线作为控制的无量纲参数的函数。确定的无量纲参数允许分析非受控膜加热的不同情况。已经表明,在实际系统中,正的热电反馈会导致不稳定性的发展和膜的损坏。已使用提供的稳定性研究提出了改善燃料电池热管理的建议。特别地,已经证明减小气体扩散层的厚度具有积极的作用并使系统稳定。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2011年第14期|p.3024-3030|共7页
  • 作者

    D.A. Bograchev; S. Martemianov;

  • 作者单位

    Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31 Leninskii Pr., Moscow 119071, Russia;

    Institut Pprimme UPR du CNRS 3346, CNRS, Universiti de Poitiers, ENSMA, Dipartement Fluides, Thermiques, Combustion - Branche Fluides, ESIP - Batiment Mecanique,40 avenue du Recteur Pineau, F86022 Poitiers Cedex, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fuel cell heat management proton exchange membrane stability;

    机译:燃料电池热管理质子交换膜稳定性;

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