Effects of cathode operating conditions on performance of a PEM fuel cell with interdigitated flow fields

A. Kazim, P. Forges, Hongtan Liu

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

A two-dimensional mathematical model is used to investigate the parameter effects on the performance of Proton exchange membrane fuel cells with an interdigitated flow field. In the interdigitated flow field mass transfer to the reaction sites is predominantly by force convection, thus much higher limiting current density and maximum power density can be achieved compared with conventional types of flow fields. The parameter effects on the fuel cell with interdigitated flow fields are performed under a different cathode porosity, inlet oxygen mole fraction, operating temperature and pressure to obtain the overall cell potential and power density. By setting appropriate boundary conditions, especially at the cathode gas diffusion layer inlet and at the reaction surface of the gas diffusion layer/catalyst layer interface, the performance of the fuel cell with interdigitated flow fields is studied in terms of the overall cell potential. The theoretical results illustrate the importance of increasing the porosity of the gas diffusion layer to achieve a higher cell performance. Similarly, an increase in the mole fraction, operating pressure or temperature of the oxygen entering the cathode gas diffusion layer leads to a greater overall cell performance.

Original languageEnglish
Pages (from-to)401-414
Number of pages14
JournalInternational Journal of Energy Research
Volume27
Issue number4
DOIs
StatePublished - Mar 25 2003

Fingerprint

Diffusion in gases
Fuel cells
Flow fields
Cathodes
Porosity
Oxygen
Surface reactions
Proton exchange membrane fuel cells (PEMFC)
Current density
Mass transfer
Boundary conditions
Mathematical models
Temperature
Catalysts

Keywords

  • Fuel cell performance
  • Interdigitated flow field
  • Proton exchange membrane fuel cell

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Nuclear Energy and Engineering

Cite this

Effects of cathode operating conditions on performance of a PEM fuel cell with interdigitated flow fields. / Kazim, A.; Forges, P.; Liu, Hongtan.

In: International Journal of Energy Research, Vol. 27, No. 4, 25.03.2003, p. 401-414.

Research output: Contribution to journalArticle

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AB - A two-dimensional mathematical model is used to investigate the parameter effects on the performance of Proton exchange membrane fuel cells with an interdigitated flow field. In the interdigitated flow field mass transfer to the reaction sites is predominantly by force convection, thus much higher limiting current density and maximum power density can be achieved compared with conventional types of flow fields. The parameter effects on the fuel cell with interdigitated flow fields are performed under a different cathode porosity, inlet oxygen mole fraction, operating temperature and pressure to obtain the overall cell potential and power density. By setting appropriate boundary conditions, especially at the cathode gas diffusion layer inlet and at the reaction surface of the gas diffusion layer/catalyst layer interface, the performance of the fuel cell with interdigitated flow fields is studied in terms of the overall cell potential. The theoretical results illustrate the importance of increasing the porosity of the gas diffusion layer to achieve a higher cell performance. Similarly, an increase in the mole fraction, operating pressure or temperature of the oxygen entering the cathode gas diffusion layer leads to a greater overall cell performance.

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