TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed)
A1  - Mayur, Manik
A1  - Strahl, Stephan
A1  - Husar, Attila
A1  - Bessler, Wolfgang G.
T1  - A multi-timescale modeling methodology for PEMFC performance and durability in a virtual fuel cell car
JF  - International journal of hydrogen energy
N2  - The durability of polymer electrolyte membrane fuel cells (PEMFC) is governed by a nonlinear coupling between system demand, component behavior, and physicochemical degradation mechanisms, occurring on timescales from the sub-second to the thousand-hour. We present a simulation methodology for assessing performance and durability of a PEMFC under automotive driving cycles. The simulation framework consists of (a) a fuel cell car model converting velocity to cell power demand, (b) a 2D multiphysics cell model, (c) a flexible degradation library template that can accommodate physically-based component-wise degradation mechanisms, and (d) a time-upscaling methodology for extrapolating degradation during a representative load cycle to multiple cycles. The computational framework describes three different time scales, (1) sub-second timescale of electrochemistry, (2) minute-timescale of driving cycles, and (3) thousand-hour-timescale of cell ageing. We demonstrate an exemplary PEMFC durability analysis due to membrane degradation under a highly transient loading of the New European Driving Cycle (NEDC).
KW  - Polymer-Elektrolytmembran-Brennstoffzelle
KW  - Simulation
Y1  - 2015
SN  - 0360-3199 (Print)
SS  - 0360-3199 (Print)
SN  - 1879-3487 (Online)
SS  - 1879-3487 (Online)
U6  - https://doi.org/10.1016/j.ijhydene.2015.09.152
DO  - https://doi.org/10.1016/j.ijhydene.2015.09.152
VL  - 40
SP  - 16466
EP  - 16476
ER  -