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Heat and Mass Transfer in Fuel Cells
Operation of a fuel cell depends on a number of transport processes such
as ow of reactant gases through the gas ow channels, mass transport
of reactant gas species from gas ow channels and through the porous
electrodes, ion transport through the membranes, and electron transport
through electrodes and interconnects. Figure 6.1 shows transport of gas ow
in ow channels as well heat and mass transport through the channels and
electrode– membrane tri-layers of the fuel cell.
As fuel and oxygen/air are supplied continuously at the gas ow channels,
the reactant gas species transport through the gas supp ...