Combined current and temperature mapping in an air-cooled, open-cathode polymer electrolyte fuel cell under steady-state and dynamic conditions

Q. Meyer, K. Ronaszegi, J. B. Robinson, M. Noorkami, O. Curnick, S. Ashton, A. Danelyan, T. Reisch, P. Adcock, R. Kraume, P. R. Shearing, D. J.L. Brett

Research output: Contribution to journalArticle

34 Citations (Scopus)
2 Downloads (Pure)

Abstract

Abstract In situ diagnostic techniques provide a means of understanding the internal workings of fuel cells so that improved designs and operating regimes can be identified. Here, for the first time, a combined current density and temperature distributed measurement system is used to generate an electro-thermal performance map of an air-cooled, air-breathing polymer electrolyte fuel cell stack operating in an air/hydrogen cross-flow configuration. Analysis is performed in low- and high-current regimes and a complex relationship between localised current density, temperature and reactant supply is identified that describes the way in which the system enters limiting performance conditions. Spatiotemporal analysis was carried out to characterise transient operations in dead-ended anode/purge mode which revealed extensive current density and temperature gradients.

Original languageEnglish
Article number21510
Pages (from-to)315-322
Number of pages8
JournalJournal of Power Sources
Volume297
Early online date13 Aug 2015
DOIs
Publication statusPublished - 30 Nov 2015
Externally publishedYes

Keywords

  • Air-breathing fuel cell
  • Current mapping
  • Performance optimisation
  • Spatiotemporal electro-thermal analysis
  • Temperature mapping

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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