Results of Current Density Distribution Mapping in PEM Fuel Cells Dependent on Operation Parameters

Maik Heuer, Paul A. Bernstein, Michael Wenske and Zbigniew A. Styczynski
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Maik Heuer: Otto-von-Guericke University Magdeburg, Chair Electric Power Networks and Renewable Energy Sources, Universitätsplatz 2, D-39106 Magdeburg, Germany
Paul A. Bernstein: Otto-von-Guericke University Magdeburg, Chair Electric Power Networks and Renewable Energy Sources, Universitätsplatz 2, D-39106 Magdeburg, Germany
Michael Wenske: Otto-von-Guericke University Magdeburg, Chair Electric Power Networks and Renewable Energy Sources, Universitätsplatz 2, D-39106 Magdeburg, Germany
Zbigniew A. Styczynski: Otto-von-Guericke University Magdeburg, Chair Electric Power Networks and Renewable Energy Sources, Universitätsplatz 2, D-39106 Magdeburg, Germany

Energies, 2013, vol. 6, issue 8, 1-18

Abstract: This paper presents in situ measurements of a newly developed current density measurement system for proton exchange membrane fuel cells (PEMFC). While the functional principle and technical evaluation of the measurement system were presented in a previous paper, this paper analyzes the influence of various operation parameters, including multiple start-stop operation, at the anode, cathode and cooling locations on the distribution and long-term development of the current density. The system was operated for 500 h over two years with long periods of inactivity between measurements. The measurement results are evaluated and provide additional information on how to optimize the operation modes of fuel cells, including the start and stop of such systems as well as the water balance.

Keywords: PEM fuel cell; current density measurement; current density distribution; operation optimization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2013
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