Measurements of Electrode Temperatures, Heat and Water Fluxes in PEMFCs: Conclusions about Transfer Mechanisms

Abstract : The objective of this work was to investigate experimentally water and heat transfers in a proton exchange membrane fuel cell. The experiment consisted in measuring, at the anode and at the cathode, the average temperature of the electrodes using small platinum wires, heat fluxes using heat flux sensors and water fluxes by means of water balance. Three thermal configurations related to the temperature imposed to the plates were studied. The measurements put forward a strong influence of the temperature profile on the water transport. On the whole, water fluxes were oriented in the same direction as the heat fluxes which depend on the temperature difference between the MEA and the plates. The results allowed confirming - at least for the materials and the operating conditions used in this work - that water produced by the electrochemical reaction crossed the diffusion layers in vapor phase. In addition, the effective thermal conductivity of porous layers, a key parameter for the analysis of heat transfer in the fuel cell, was estimated in situ.
Type de document :
Article dans une revue
Journal of The Electrochemical Society, Electrochemical Society, 2013, 160 (2), pp.F191 - F204. 〈10.1149/2.006303jes〉
Liste complète des métadonnées

https://hal.univ-lorraine.fr/hal-01431356
Contributeur : Lemta Ul <>
Soumis le : mardi 10 janvier 2017 - 16:58:52
Dernière modification le : lundi 4 juin 2018 - 10:04:02

Identifiants

Collections

Citation

Anthony Thomas, Gaël Maranzana, Sophie Didierjean, Jérôme Dillet, Olivier Lottin. Measurements of Electrode Temperatures, Heat and Water Fluxes in PEMFCs: Conclusions about Transfer Mechanisms. Journal of The Electrochemical Society, Electrochemical Society, 2013, 160 (2), pp.F191 - F204. 〈10.1149/2.006303jes〉. 〈hal-01431356〉

Partager

Métriques

Consultations de la notice

52