Dynamic behavior and transient analysis are one of the most critical issues for high performance polymeric electrolyte membrane fuel cells. An improvement of performance can be achieved both with hardware modifications and with more sophisticated control strategies. To this regard, the availability of a reliable dynamic fuel cell model plays an important role in the design of fuel cell control and diagnostic system. This paper presents a non-linear, iso-thermal, zero-dimensional model of a pressurized PEM fuel cell system used for automotive applications. The model was derived from a detailed, iso-thermal, steady-state, dimensional model which explicitly calculated (and subsequently captured as a multi-D look-up table) the relationship between cathode and anode pressures and humidity and stack average current. Since in the electrochemical model the single cell performance depends on the membrane ionic resistance, which is strictly related to the membrane water content, a dynamic estimation of the membrane water diffusion has been considered. This takes into account the dependence of the cell voltage on the unsteady membrane water concentration. A similar approach still allows the development of a simple zero-dimensional dynamic model suitable for control system development and amenable to control-oriented humidity modelling.
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ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology
June 19–21, 2006
Irvine, California, USA
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4247-9
PROCEEDINGS PAPER
Transient Analysis and Modelling of Automotive PEM Fuel Cell System Accounting for Water Transport Dynamics Available to Purchase
Alessandro Miotti,
Alessandro Miotti
Politecnico di Milano, Milano, Italy
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Alfonso Di Domenico,
Alfonso Di Domenico
Universita` degli Studi di Salerno, Fisciano, SA, Italy
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Angelo Esposito,
Angelo Esposito
Ohio State University, Columbus, OH
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Yann G. Guezennec
Yann G. Guezennec
Ohio State University, Columbus, OH
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Alessandro Miotti
Politecnico di Milano, Milano, Italy
Alfonso Di Domenico
Universita` degli Studi di Salerno, Fisciano, SA, Italy
Angelo Esposito
Ohio State University, Columbus, OH
Yann G. Guezennec
Ohio State University, Columbus, OH
Paper No:
FUELCELL2006-97237, pp. 411-422; 12 pages
Published Online:
September 15, 2008
Citation
Miotti, A, Di Domenico, A, Esposito, A, & Guezennec, YG. "Transient Analysis and Modelling of Automotive PEM Fuel Cell System Accounting for Water Transport Dynamics." Proceedings of the ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASME 2006 Fourth International Conference on Fuel Cell Science, Engineering and Technology, Parts A and B. Irvine, California, USA. June 19–21, 2006. pp. 411-422. ASME. https://doi.org/10.1115/FUELCELL2006-97237
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