Title: Modeling planar and self-breathing fuel cells for use in electronic devices
Authors : Ziegler, Christoph
Schmitz, Andreas
Tranitz, Marco
Fontes, Ed
Schumacher, Jürgen
Published in : Journal of the Electrochemical Society
Volume(Issue) : 151
Issue : 12
Pages : 2028
Pages to: 2041
Publisher / Ed. Institution : Electrochemical Society
Issue Date: 28-Oct-2004
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Publication)
Language : English
Subjects : Self-breathing; PEMfc; Fuel cells; Modelling
Subject (DDC) : 621.3: Electrical engineering and electronics
Abstract: 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
Organisational Unit: Institute of Computational Physics (ICP)
Publication type: Article in scientific Journal
DOI : 10.1149/1.1810451
ISSN: 0013-4651
1945-7111
URI: https://digitalcollection.zhaw.ch/handle/11475/11599
Appears in Collections:Publikationen School of Engineering

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