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

D. A. Bograchev, S. Martemianov

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)3024-3030
Number of pages7
JournalInternational Journal of Heat and Mass Transfer
Volume54
Issue number13-14
DOIs
StatePublished - Jun 2011
Externally publishedYes

Keywords

  • Fuel cell
  • Heat management
  • Proton exchange membrane
  • Stability

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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