PEMFC application for aviation: Experimental and numerical study of sensitivity to altitude - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue International Journal of Hydrogen Energy Année : 2012

PEMFC application for aviation: Experimental and numerical study of sensitivity to altitude

(1) , (1) , (1)
1
Théophile Hordé
  • Fonction : Auteur
Patrick Achard
Rudolf Metkemeijer

Résumé

Proton Exchange Membrane Fuel Cells are more and more considered as energy converters for mobile applications, such as road vehicles, boats and airplanes. The feasibility of PEMFC integration to aircraft raises several difficulties such as the loss of performance due to altitude and ambient pressure decrease. An aerobic PEMFC system is experimentally investigated at three different altitudes representative of aircraft cruise (200 m, 1200 m and 2200 m), and at different air stoichiometric factors (from 1.5 to 2.5). The experimental results are employed to perform fitting of PEMFC numerical model parameters and validation of the model. A least square method is implemented in a Matlab ® code to determine one set of model parameters for all experimental data sets. The model based on literature is modified in order to better represent the effect of ambient pressure on voltage response. Comparisons of experimental and numerical results are presented and show good agreement. Fuel cell performance is found to decrease drastically as altitude increases, as well as air stoichiometric factor decreases. The air pressure in cathode gas channels is measured and analysed. The decline of PEMFC performances in altitude is due to ambient pressure decrease, to air compressor efficiency drop and to flooding in the gas channels. This PEMFC loss of performances is attenuated by high cathode stoichiometric factors.
Fichier non déposé

Dates et versions

hal-00700736 , version 1 (23-05-2012)

Identifiants

Citer

Théophile Hordé, Patrick Achard, Rudolf Metkemeijer. PEMFC application for aviation: Experimental and numerical study of sensitivity to altitude. International Journal of Hydrogen Energy, 2012, 37 (4), pp.10818-10829. ⟨10.1016/j.ijhydene.2012.04.085⟩. ⟨hal-00700736⟩
211 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More