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Proton exchange membrane Fuel Cell (inquiry)

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i have some questions about the PEM fuel cell.

1) how can i change the porosity, density, temperature and velocity (profile velocity along the x-axis) and if i changed them what is effect and the results that i will get ?

2) about the chemical equation why it is only valid for 25 C ?

3) what are the equations that is used in the model of the species transport in the GDL's of a PEM ? and why did we use these equations ?

4) why do we use the mesh ? and why did we use the tetra mesh in this model ? how many type of mesh do we have ? and what is mesh sensitivity ?

5) how can i put dimensions on the model ?

please answer these questions if you can :D , thanks in advance.

best regards.


0 Replies Last Post 05.12.2014, 13:07 GMT-5
COMSOL Moderator

Hello Mohammed Alaasi

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