Polymer electrolyte membrane fuel cell operating in stoichiometric regime
Type
Articles dans des revues avec comité de lectureDate
2019Journal
Journal of Power SourcesAbstract
In this work, we report the existence of a stoichiometric regime where the performances of operating polymer electrolyte membrane (PEM) fuel cells are entirely governed by the mass transport in the cathode channels. An analytical model of the fuel cell stoichiometric regime is derived and evidenced experimentally: from the cell spectral signature at low frequency based on electrochemical impedance spectroscopy, and from the current density distribution measured using a segmented current collector. The existence of such regime provides a simple way to characterize, model and predict PEM fuel cell performances.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
LORRETTE, Christophe; EL YAGOUBI, Jalal; COUPE, Aurélie; CATY, Olivier; SAUDER, Cédric; BATSALE, Jean-Christophe (Société Française de Thermique / Congrès Français de Thermique - Thermique en conditions extrêmes, 29 mai - 1er juin 2012, Bordeaux, 2012)L'accès aux propriétés thermiques des matériaux composites thermostructuraux destinés aux applications nucléaires est un enjeu important pour prévoir leur comportement en condition d'utilisation. Dans un objectif prévisionnel ...
-
CEZARD, Pierre; BIGOT, Régis; BECKER, Eric; MATHIEU, Stéphane; PIERRET, Jean-Christophe; RASSILI, Ahmed (E. Cueto and F. Chinesta, 2007)Through different papers [1,2], authors shown that the influence of thermal exchanges was a first order parameter on the semi-solid steel behaviour, and certainly for every semi-solid metallic materials. These thermal ...
-
BAMFORD, Matthieu; BATSALE, Jean-Christophe; FUDYM, Olivier (Société Française de Thermique / Congrès Français de Thermique, 29 mai - 1 juin 2007, Île des Embiez, 2007)Dans cette étude, des séquences infrarouges en régime transitoire d’un composite SiCf/SiC excité par un « flash » sont traitées par deux approches. Une approche modale qui consiste à projeter les données brutes sur une ...
-
PALADINI, Edoardo; MARQUET, Olivier; SIPP, Denis; ROBINET, Jean-Christophe; DANDOIS, Julien (Cambridge University Press, 2019)The transonic flow field around a supercritical airfoil is investigated. The objective of the present paper is to enhance the understanding of the physical mechanics behind two-dimensional transonic buffet. The paper is ...
-
PICELLA, Francesco; LOISEAU, Jean-Christophe; LUSSEYRAN, F; ROBINET, Jean-Christophe; CHERUBINI, Stefania; PASTUR, L (Cambridge University Press, 2018)The transition to unsteadiness of a three-dimensional open cavity flow is investigated using the joint application of direct numerical simulations and fully three-dimensional linear stability analyses, providing a clear ...