English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/50846
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Comparison of water management between two bipolar plate flow-field geometries in proton exchange membrane fuel cells at low-density current range

AutorLópez, A. M.; Barreras Toledo, Félix; Lozano Fantoba, Antonio; García, J. A.; Valiño García, Luis; Mustata Oroviceanu, Radu
Fecha de publicación2009
EditorElsevier
CitaciónJournal of Power Sources 192: 94-99 (2009)
ResumenThis experimental research studies some aspects of water formation and management in polymer electrolyte membrane fuel cells (PEMFCs). To this end, two different single cells of 49 cm2 active area have been tested, the first one with a serpentine-parallel geometry and the second with a cascade-type flow-field topology. In order to visualize the processes, flow-field channels have been machined on transparent plastic. Experiments have consisted in both image acquisition using a CCD camera, and simultaneous measurements of pressure drop in both hydrogen and oxygen gas flow paths. It has been observed that with the cascade-type flow-field geometry, water produced in the cathode does not flood the gas flow channels and, consequently, can be drained in an easy way. On the other hand, it has also been verified that saturated condition for the hydrogen gas flow at the anode side produces water condensation and channel flooding for the serpentine-parallel flow-field topology. Time fluctuations in the pressure drop of the gas flow have been detected and are associated to some transient process inherent to water formation and management. © 2008 Elsevier B.V. All rights reserved.
URIhttp://hdl.handle.net/10261/50846
DOI10.1016/j.jpowsour.2008.12.082
Identificadoresdoi: 10.1016/j.jpowsour.2008.12.082
issn: 0378-7753
Aparece en las colecciones: (LIFTEC) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.