Fuel cell is an emerging area in the field of renewable alternate
energy sources. The operation of a fuel cell involves fluid flow,
heat transfer, mass transfer processes and the electrochemical
reaction. All the above processes are coupled and they take place
in a small region of space making the system complex. The
performance of a fuel cell can be studied by experiments and
numerical modeling. In the present project, an attempt is made to
mathematically model the performance of a Polymer Electrolyte
Membrane (PEM) fuel cell using lumped and control volume approach.
The various processes that take place inside the gas diffusion
layer of anode and cathode, catalyst and membrane of the fuel cell
are represented using governing equations based on the mass and
energy conservation principles and electrochemical reactions. The
equation that is used to represent the diffusion phenomena in the
GDL is solved using the Finite Difference Method. The present model
is capable of predicting the performance of the PEM fuel cell in
close agreement with numerical model based on CFD approach with a
maximum of 30% error.
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