Numerical Simulation of a High-Temperature PEM (HTPEM) Fuel Cell

C. Siegel1,2, G. Bandlamudi1,2, and A. Heinzel1,2
1Zentrum für BrennstoffzellenTechnik (ZBT) GmbH, Duisburg, Germany
2Institut für Energie- und Umweltverfahrenstechnik, University of Duisburg-Essen, Duisburg, Germany

Phosphoric acid doped polybenzimidazole (PBI) membranes are commonly used for high temperature polymer-electrolyte-membrane (HTPEM) fuel cells in order to achieve high proton conductivity.

Only a few numerical HTPEM fuel cell studies along with experimental validation are currently available. Here, a HTPEM fuel cell model is developed and simulated using COMSOL Multiphysics.

Emphasis is put on the thermal behavior of the cell as a two-phase equation is used to describe solid- and fluid-phase temperatures.

The results are validated and compared to practical expertise. The polarization and power density output curves are presented. As for the numerical analysis, convergence behavior is discussed.