Comportement local et performances électriques d'une pile à combustible à membrane : vers un outil de diagnostic

Abstract : The present work contributes to the understanding of water management and thermal management of a PEM fuel cell influences on the electrical performances. A bidimensional model representing mass and heat transfer in the cell thickness and along distribution channels is done. A specific part of the study concerns a microscopic representation of reactive agglomerates. This part presents the impact of the liquid water presence on local and global current densities. In te vein of integrating this model in a total fuel cell control system, simplifications have been done and coupled mass, heat and charge transfers are solved analytically. For any operating condition, the model gives a complete view of the hydric, thermal and electric inner situation of the cell. This diagnosis of the inner state of the cell leads to find the operating conditions giving to the optimal electric performances. Water, current and temperature distributions are presenting for different gas feeding strategies and different thermal management configurations. A specific part is dedicated to illustrate how this local diagnosis of the cell state can be used to estimate its global electric performances
Document type :
Theses
Complete list of metadatas

Cited literature [123 references]  Display  Hide  Download

https://hal.univ-lorraine.fr/tel-01748745
Contributor : Thèses Ul <>
Submitted on : Thursday, March 29, 2018 - 11:47:52 AM
Last modification on : Wednesday, April 11, 2018 - 1:27:45 AM
Long-term archiving on : Friday, September 14, 2018 - 9:39:15 AM

File

2009_CHUPIN_S.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : tel-01748745, version 1

Collections

Citation

Sylvain Chupin. Comportement local et performances électriques d'une pile à combustible à membrane : vers un outil de diagnostic. Autre. Institut National Polytechnique de Lorraine, 2009. Français. ⟨NNT : 2009INPL098N⟩. ⟨tel-01748745⟩

Share

Metrics

Record views

28

Files downloads

61