Steady State Multiplicity in a Polymer Electrolyte Membrane Fuel Cell

Details Steady State Multiplicity in a Polymer Electrolyte Membrane Fuel Cell Steady State Multiplicity in a Polymer Electrolyte Membrane Fuel Cell

2003-06-16

arxiv.org/abs/nlin/0306028v1

Nonlinear Sciences

Chaotic Dynamics

8 pages, 4 figures

Scientific paper

A simplified differential reactor model that embodies the essential physics controlling PEM fuel cell (PEM-FC) dynamics is presented. A remarkable analogy exists between water management in the differential PEM-FC and energy balance in the classical exothermic stirred tank reactor. Water, the reaction product in the PEM-FC autocatalytically accelerates the reaction rate by enhancing proton transport through the PEM. Established analyses of heat autocatalyticity in a CSTR are modified to present water management autocatalyticity in a stirred tank reactor PEM-FC.

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