Title :
Stack-level validation of a semi-analytic channel-to-channel fuel cell model for two-phase water distribution boundary value control
Author :
McCain, B.A. ; Siegel, J.B. ; Stefanopoulou, A.G.
Author_Institution :
Mech. Eng. Dept., Univ. of Michigan, Ann Arbor, MI
Abstract :
A dynamic model combining analytic and numeric solutions to the partial differential equations (PDE) describing mass transport in the gas diffusion layers (GDL) of a fuel cell is verified by voltage prediction. The model estimates the effect of stack temperature changes, reactant gas concentration fluctuation, and excess liquid water (flooding) in the GDL. The semi-analytic model is more computationally efficient than a fully numeric model, and includes both anode and cathode channel dynamics enabling future boundary value control.
Keywords :
boundary-value problems; fuel cells; partial differential equations; channel-to-channel fuel cell model; excess liquid water; gas diffusion layer; mass transport; partial differential equation; reactant gas concentration fluctuation; stack-level validation; voltage prediction; water distribution boundary value control; Anodes; Computational modeling; Floods; Fluctuations; Fuel cells; Numerical models; Partial differential equations; Predictive models; Temperature; Voltage;
Conference_Titel :
American Control Conference, 2008
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-2078-0
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2008.4587302