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Numerical Investigation of PEMFC Short-Circuit Behaviour Using an Agglomerate Model Approach

Author

Listed:
  • Carsten Cosse

    (Electrical Power Systems, Faculty of Electrical Engineering, Helmut Schmidt University/University of the Bundeswehr Hamburg, 22043 Hamburg, Germany)

  • Marc Schumann

    (Electrical Power Systems, Faculty of Electrical Engineering, Helmut Schmidt University/University of the Bundeswehr Hamburg, 22043 Hamburg, Germany)

  • Florian Grumm

    (Electrical Power Systems, Faculty of Electrical Engineering, Helmut Schmidt University/University of the Bundeswehr Hamburg, 22043 Hamburg, Germany)

  • Daniel Becker

    (Electrical Power Systems, Faculty of Electrical Engineering, Helmut Schmidt University/University of the Bundeswehr Hamburg, 22043 Hamburg, Germany)

  • Detlef Schulz

    (Electrical Power Systems, Faculty of Electrical Engineering, Helmut Schmidt University/University of the Bundeswehr Hamburg, 22043 Hamburg, Germany)

Abstract

With increasing interest in clean energy generation in the transportation sector, increasing attention has been given to polymer-electrolyte-membrane fuel cells as viable power sources. One issue, the widespread application of this technology faces, is the insufficient knowledge regarding the transient behaviour of fuel cells, for instance, following a short-circuit event. In this paper, an agglomerate model is presented and validated, which enables the transient simulation of short-circuit events to predict the resulting peak current and discharge of the double layer capacity. The model allows for the incorporation of detailed morphological and compositional information regarding all fuel cell components. This information is used to calculate the reaction rate, diffusional and convectional species transfer, and the momentum transport. It can be shown that the charge in the double layer capacitance of the fuel cell is key to predicting the peak current and its charge is dependent on the operating conditions of the fuel cell. Further, the effects of the magnitude of the double layer capacity, current rise time and stoichiometry on the dynamic behaviour of the fuel cell are investigated. It can be shown that the discharge of the double layer capacity proceeds from the membrane through the catalyst layer to the gas diffusion layer and that the stoichiometry of the gas supply does not significantly change the absolute peak value of the short-circuit current.

Suggested Citation

  • Carsten Cosse & Marc Schumann & Florian Grumm & Daniel Becker & Detlef Schulz, 2020. "Numerical Investigation of PEMFC Short-Circuit Behaviour Using an Agglomerate Model Approach," Energies, MDPI, vol. 13(16), pages 1-25, August.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:16:p:4108-:d:396285
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    References listed on IDEAS

    as
    1. Yan Shi & Holger Janßen & Werner Lehnert, 2019. "A Transient Behavior Study of Polymer Electrolyte Fuel Cells with Cyclic Current Profiles," Energies, MDPI, vol. 12(12), pages 1-13, June.
    2. Der-Sheng Chan & Kan-Lin Hsueh, 2010. "A Transient Model for Fuel Cell Cathode-Water Propagation Behavior inside a Cathode after a Step Potential," Energies, MDPI, vol. 3(5), pages 1-20, April.
    3. Jun Shen & Zhichun Liu & Fan Liu & Wei Liu, 2018. "Numerical Simulation of Water Transport in a Proton Exchange Membrane Fuel Cell Flow Channel," Energies, MDPI, vol. 11(7), pages 1-23, July.
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