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HYSYDAYS<br>1st World Congress of Young Scientists on Hydrogen Energy Systems

ISBN:
1-56700-230-7 (Print)

SCALE-UP AND EXPERIMENTAL VALIDATION OF A MATHEMATICAL MODEL OF A PROTON EXCHANGE MEMBRANE FUEL CELL STACK

Luca Baldini
HySyLab – Environment Park Via Livorno, 60 Torino, Italy

Pierpaolo Cherchi
HySyLab – Environment Park Via Livorno, 60 Torino, Italy

Ilaria Rosso
HySyLab - Environment Park Via Livorno 60 Turin, Italy

Giuseppe Gianolio
HySyLab – Environment Park Via Livorno, 60 Torino, Italy

Marco Cerchio
Politecnico di Torino Dipartimento di Ingegneria Elettrica Industriale, Corso Duca degli Abruzzi, 24 10129 Turin, Italy

Francesco Profumo
Politecnico di Torino Dipartimento di Ingegneria Elettrica Industriale, Corso Duca degli Abruzzi, 24 10129 Turin, Italy

Abstract

The implementation and the validation of a mathematical model of a Proton Exchange Membrane Fuel Cell are illustrated. The model was created implementing in C-mex Sfunctions, in Matlab and Simulink environment, theoretical equations founded in literature, describing the common behaviour of a fuel cell in terms of voltage drops and transient phenomena. The dynamic behaviour of the reactant species inside the flow channel and the effect of water content in the membrane are also taken into account.
The equation parameters of the fuel cell were suited to those of a 25 cm2 PEM single cell by means of fitting methods in different operative conditions (temperature and inlet gas composition). The model was fully validated by the comparison with the experimental polarisation curves of the 25 cm2 PEM single cell.
In order to obtain a tool that described the transient behaviour of a larger power system (e.g. For distributed (co)generation or transportation application) a thermal management unit was added referring to arcotronics penta h2, a 5 kw power system available in environment park hydrogen system laboratory. The main parameters describing the fuel cell behaviour were then suited to the new configuration and their influence on the scaling-up was analysed obtaining a study of the most critical factors in fuel cell operation.