Abstract
Distributions in reactant species concentration in a PEMFC cause distributions in local current density, temperature and water over the area of a PEMFC. These can lead to effects such as flooding and cause stresses in different regions of the fuel cell. Changing flow field configuration including channel path length, width, or height to distribute the gas more evenly is one method of minimizing these stresses. This work investigates how 200 cm2 serpentine flow field with different number of gas path and channel/rib's cross section area affect performance and species distributions.
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