Gestion de l'eau et performances électriques d'une pile à combustible : des pores de la membrane à la cellule

Abstract : This works contributes to the understanding of water management of polymer electrolyte membrane fuel cell and of its links with the electrical performances. More specifically, the manuscript deals with the multi-scale modelling of transport phenomena. An analysis of coupled mass and charge transfer in the pores of a polymer membrane is presented. The presence of liquid water is considered in the GDL (two-phase flow) and in the active layers (flooding). The description of these phenomena is associated with that of gas depletion along the bipolar plate channels. This allows to emphasize the non-uniformity of water concentration, of the fluxes and as a consequence, of current density. The numerical results are compared with experimental data (water transport coefficient, local electrical performances) measured on two different fuel cells. This comparison validates at least partially the numerical models and provides further information for the analysis of water management within PEMFC
Document type :
Theses
Complete list of metadatas

https://hal.univ-lorraine.fr/tel-01753041
Contributor : Thèses Ul <>
Submitted on : Thursday, March 29, 2018 - 2:05:23 PM
Last modification on : Tuesday, April 10, 2018 - 1:27:21 AM

File

2008_COLINART_T.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : tel-01753041, version 1

Collections

Citation

Thibaut Colinart. Gestion de l'eau et performances électriques d'une pile à combustible : des pores de la membrane à la cellule. Autre. Institut National Polytechnique de Lorraine, 2008. Français. ⟨NNT : 2008INPL039N⟩. ⟨tel-01753041⟩

Share

Metrics

Record views

32

Files downloads

77