Dynamic modeling and simulation of a fuel cell propulsion system

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Dynamic modeling and simulation of a fuel cell propulsion system

Bußhardt, J. / Masten, D. / Sinha, M. / Kilian, P. / Raiser, S.

The fuel cell system model presented in this paper has been derived from the basics of physics and chemistry, which gives a deeper insight and a fundamental understanding of fuel cell systems than empirical models. Due to the modular approach, it is a very flexible and user friendly tool. It has shown its value in a variety of different applications. As an example, a dynamic model of a catalytic combustor has been presented. It is developed in a modular way via reuse of objects in model library. The model is validated against experimental data and is able to match a majority of the transient and steady state characteristic. The validated model could then be used as a 'virtual combustor' for an offline controls development. For future applications, a growing model library with basic components is available. Standarized modeling of independent chemical, thermal and pressure behaviour enables very fast design of new components/reactions with correct balance (e.g. gas/heat), buffers, partial oxidation and other reactors, and systems based on different fuels.