Titel: Modeling planar and self-breathing fuel cells for use in electronic devices
Autor/-in: Ziegler, Christoph
Schmitz, Andreas
Tranitz, Marco
Fontes, Ed
Schumacher, Jürgen
Erschienen in: Journal of the Electrochemical Society
Band(Heft): 151
Heft: 12
Seiten: 2028
Seiten bis: 2041
Verlag / Hrsg. Institution: Electrochemical Society
Erscheinungsdatum: 28-Okt-2004
Lizenz (gemäss Verlagsvertrag): Lizenz gemäss Verlagsvertrag
Art der Begutachtung: Peer review (Publikation)
Sprache: Englisch
Schlagwörter: Self-breathing; PEMfc; Fuel cells; Modelling
Fachgebiet (DDC): 621.3: Elektrotechnik und Elektronik
Zusammenfassung: A theoretical study of a planar and self-breathing fuel cell is presented. This work contains the development of a mathematical model for planar self-breathing fuel cells, the validation of the model and a study on the behavior of this type of fuel cell. The mathematical model presented is two-dimensional and non-isothermal. The validation of the model is performed by comparison of the measured overall performance of a planar self-breathing fuel cell to the predictions of the model. For this type of cell, the maximum power density is in the range between 0.5 V and 0.4 V, so the model is applied to study the behavior of the reference cell at a cell voltage of 0.4 V. The results show: The gas distribution, the potential distribution and the temperature distribution are influenced strongly by the geometric design of the cathode end plate. The charge generation rate in the active area of the cathode and anode is affected by the ribs of the cathode end plate. A strong non-uniformity of the current density distribution in the cathode is found.
Departement: School of Engineering
Organisationseinheit: Institute of Computational Physics (ICP)
Publikationstyp: Beitrag in wissenschaftlicher Zeitschrift
DOI: 10.1149/1.1810451
ISSN: 0013-4651
1945-7111
URI: https://digitalcollection.zhaw.ch/handle/11475/11599
Enthalten in den Sammlungen:Publikationen School of Engineering

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