Skip to Main content Skip to Navigation
Journal articles

Impact of humidification by cathode exhaust gases recirculation on a PEMFC system for automotive applications

Abstract : Reactant gases humidification, in most PEM fuel cell systems, is traditionally implementedto ensure both stack durability and superior performance. A cathode exhaust gases recirculationarchitecture allows to decrease the system volume compared to the passive humidifiers,which are classically used. Incorrect water management being responsible forirreversible degradations, a control of relative humidity at stack inlet thanks to the recirculationcould be of great interest to limit their impact. In this work, investigations onperformance and stability are performed during operation in recirculation mode, from thecell scale to the system scale. It was observed that high to medium recirculation ratios wereable to stabilize and homogenize the cells voltages along the stack but performance wasreduced due to oxygen dilution by nitrogen. Besides, large relative humidity ranges wereachieved at stack inlet, which can vary from 25 to 85% and could be able to follow automotivedynamics.
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-02337129
Contributor : Accord Elsevier Ccsd Connect in order to contact the contributor
Submitted on : Friday, October 22, 2021 - 9:14:28 PM
Last modification on : Thursday, November 25, 2021 - 2:00:07 PM

File

S0360319918337443.pdf
Files produced by the author(s)

Licence


Distributed under a Creative Commons Attribution - NonCommercial 4.0 International License

Identifiers

Collections

Citation

S. Rodosik, J.-P. Poirot-Crouvezier, Y. Bultel. Impact of humidification by cathode exhaust gases recirculation on a PEMFC system for automotive applications. International Journal of Hydrogen Energy, Elsevier, 2019, 44 (25), pp.12802-12817. ⟨10.1016/j.ijhydene.2018.11.139⟩. ⟨hal-02337129⟩

Share

Metrics

Record views

451

Files downloads

59