Modeling Of Transport Phenomena in A PEM Fuel Cell

334  Abstract— In this paper, a three dimensional non-isothermal and steady state model is presented. This model takes into account the transport of reactants, heat, charge species and fluid flow in all parts of the cell in conjunction with the electrochemical reaction. The solid collectors are also included in this model in view to approach a realistic system representation. These processes have a significant impact on water management. Water management ensures that the membrane remains fully hydrated to maintain good ionic conductivity and performance. This work focuses on the effect of gradients of pressure between the anode and cathode, on the performance of the cell and also investigates the effect of these parameters on water management within the cell. Different cases of these gradients have been investigated and compared to the experimental results reported by Wang [2000].