TY  - JOUR
AU  - Kulikovsky, Andrei
TI  - Performance of a PEM fuel cell with oscillating air flow velocity: A modeling study based on cell impedance
JO  - eTransportation
VL  - 7
SN  - 2590-1168
CY  - Amsterdam [u.a.]
PB  - Elsevier
M1  - FZJ-2021-00306
SP  - 100104 -
PY  - 2021
AB  - A model of PEM fuel cell impedance is developed taking into account imposed harmonic perturbation of the air flow velocity in the cathode channel. The flow velocity modulation with the amplitude proportional to AC amplitude of the cell potential lowers the resistivity Rh due to oxygen transport in channel. When relative amplitudes of velocity and potential oscillations are equal, a complete compensation of Rh occurs. This effect explains experimental findings of Kim et al. (https://doi.org/10.1016/j.jpowsour.2008.06.069) and Hwang et al. (https://doi.org/10.1016/j.ijhydene.2010.01.064), who demonstrated significant improvement of PEM fuel cell performance under oscillating air flow velocity.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000658426300011
DO  - DOI:10.1016/j.etran.2021.100104
UR  - https://juser.fz-juelich.de/record/889674
ER  -