### Abstract

A model of one dimensional fuel cells is investigated, where the material inhomogeneities in the cathode are taken into account. We use the results in some preceding studies to describe the dynamics of the chemical reactions and transport of ions. A corresponding governing equation is derived for the numerical simulations. We apply an explicit-implicit time integration and Richardson extrapolation technique to increase the accuracy of the approximations. The efficiency of the method is demonstrated using a non-trivial test problem with real parameters. Numerical simulations are executed in presence of inhomogeneous conductivities and their effect on the cell potential is investigated.

Original language | Undefined |
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Place of Publication | Enschede |

Publisher | University of Twente, Department of Applied Mathematics |

Number of pages | 19 |

Publication status | Published - Jan 2011 |

### Publication series

Name | Memorandum / Department of Applied Mathematics |
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Publisher | University of Twente, Department of Applied Mathematics |

No. | 1932 |

ISSN (Print) | 1874-4850 |

ISSN (Electronic) | 1874-4850 |

### Keywords

- Fuel cell
- METIS-277497
- EWI-19359
- IR-75746
- Conductivity parameters
- Potential loss
- Modeling

## Cite this

Faragó, I., Izsak, F., Kriston, Á., & Szabó, T. (2011).

*Heterogeneous conductivity parameters in a one dimensional fuel cell model*. (Memorandum / Department of Applied Mathematics; No. 1932). Enschede: University of Twente, Department of Applied Mathematics.