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  Analysis of the nonlinear dynamics of a direct methanol fuel cell

Zhou, S., Schultz, T., Peglow, M., & Sundmacher, K. (2001). Analysis of the nonlinear dynamics of a direct methanol fuel cell. Physical Chemistry Chemical Physics, 3(3), 347-355. doi:10.1039/B007283O.

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Zhou, S., Autor
Schultz, Thorsten1, Autor           
Peglow, M., Autor
Sundmacher, Kai1, 2, Autor           
Affiliations:
1Process Systems Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society, ou_1738151              
2Otto-von-Guericke-Universität Magdeburg, External Organizations, ou_1738156              

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 Zusammenfassung: This paper is related to the analysis of the dynamic behaviour of a liquid-feed direct methanol fuel cell (DMFC) under different operating conditions, based on an isothermal model accounting for the mass balances the charge balances, the reaction micro-kinetics and the mass transport phenomena. Conceptually, the fuel cell system is decomposed into its subsystems (anode and cathode compartments, diffusion layers, catalyst layers on both electrodes, proton exchange membrane (PEM)). The models of the subsystems are coupled to a DMFC model which is represented by a set of differential-algebraic equation of index one. Dynamic simulation with this model show that the undesired cross-over of the reactant methanol through the PEM can be reduced by periodically pulsed methanol feeding to the anode compartment. The simulated results are in good agreement with experimental cell voltage data obtained from a laboratory-scale DMFC which was operated with different dynamic feeding strategies.

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 Datum: 2001
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
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 Identifikatoren: eDoc: 63063
Anderer: 139
DOI: 10.1039/B007283O
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Titel: Physical Chemistry Chemical Physics
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 3 (3) Artikelnummer: - Start- / Endseite: 347 - 355 Identifikator: -