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Experimental decoupling of single cell polarization losses
Husar, Attila Peter; D'ELia, Gaia; Roda Serrat, Vicente
Universitat Politècnica de Catalunya. Institut de Robòtica i Informàtica Industrial; Universitat Politècnica de Catalunya. ACES - Control Avançat de Sistemes d'Energia
The decoupling of the current sweep with the Ohmic resistance is a very powerful tool to determine the magnitude of the voltage losses inside of a fuel cell. In a time frame of seconds, the fuel cell can be diagnosed and critical information on the state of the membrane, catalyst and diffusion layer can be assessed. The losses determined by this technique are the Ohmic, mass transport and activation. With this technique flooding and dry can be isolated and degradation studies can be made. Finally, this technique can be applied to a real system were this data can be used to improve control strategies for performance and durability when integrated in to a model based controller.
Peer Reviewed
Àrees temàtiques de la UPC::Informàtica::Automàtica i control
Àrees temàtiques de la UPC::Energies::Tecnologia energètica
PEM fuel cells
power generation control. Tafel slope
mass transport
Ohmic resistance
voltage losses
Piles de combustible -- Control electrònic

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