Recent advances in single-chamber fuel-cells: Experiment and modeling

Yong Hao, Zongping Shao, Jennifer Mederos, Wei Lai, David G. Goodwin, Sossina M. Haile*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

Single-chamber fuel cells (SCFC) are ones in which the fuel and oxidizer are premixed, and selective electrode catalysts are used to generate the oxygen partial pressure gradient that in a conventional dual-chamber design is produced by physical separation of the fuel and oxidizer streams. SCFCs have been shown capable of generating power densities above 700 mW/cm2 with appropriate catalysts, making them potentially useful in many applications where the simplicity of a single gas chamber and absence of seals offsets the expected lower efficiency of SCFCs compared to dual-chamber SOFCs. SCFC performance is found to depend sensitively on cell microstructure, geometry, and flow conditions, making experimental optimization tedious. In this paper, we describe recent work focused on developing a quantitative understanding the physical processes responsible for SCFC performance, and the development of an experimentally-validated, physically-based numerical model to allow more rational design and optimization of SCFCs. The use of the model to explore the effects of fuel/oxidizer ratio, anode thickness, and flow configuration is discussed.

Original languageEnglish (US)
Pages (from-to)2013-2021
Number of pages9
JournalSolid State Ionics
Volume177
Issue number19-25 SPEC. ISS.
DOIs
StatePublished - Oct 15 2006

Keywords

  • Experiment and simulation
  • Hydrocarbon fuels
  • Single chamber
  • Solid oxide fuel cell

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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