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1 Turbulence : international journal

1 2005

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Numerical method of polymer electrolyte membrane fuel cell - single domain approach

Stępień M., Bogusławski A., Bourgeois M.

Turbulence : international journal

2005

Vol. 11

75-87

The paper presents mathematical model of Polymer Electrolyte Fuel Cell. In the model steady state conditions were assumed. Electrochemical reactions take place in anode and cathode catalyst layers. The system of transport equations that describes the operation of the fuel cell was solved in flow channels, diffusion layers, catalyst layers and membrane using commercial CFD code Fluent. The electrochemical precesses occuring in certain elements of fuel cell were modelled by definition of special source terms in transport equations. Fluent software in basic version is not capable to model electrochemical reactions. Therefore it was necessary to perform some modifications of standard code by writing additional subroutines according to User Defined Functions coding capability of Fluent. After analysis of their possible aplica-tions it was assumed that they are suitable for modelling of electrochemical reactions which take place in PEM fuel cell.