0000000000026854
AUTHOR
Khadidja Bouziane
Impact of cyclic mechanical stress on the electrical contact resistance between gas diffusion layer and bipolar plates in Polymer Electrolyte Membrane Fuel Cells
WHEC 2018, 22nd edition of the WORLD HYDROGEN ENERGY CONFERENCE, Rio de Janeiro, BRESIL, 17-/06/2018 - 22/06/2018; and collisions) and the mechanical clamping stress applied during the stack assembly. The internal stresses come from the shrinking and the swelling of the membrane caused by water content and the difference between the thermal expansion coefficients of the cell components. These mechanical stresses have an impact on the global fuel cell's performance and one of the most sensitive cell's components to this pressure is the Gas Diffusion Layer (GDL). This layer, assembled with the membrane electrode assembly, provides the reactant gases, evacuates the produced heat and …
Comparative study by design of experiments of linear and nonlinear constitutive models and geometric parameters effects on PEMFC performances
International audience; Proton Exchange Membrane Fuel Cell (PEMFC) appears to be a promising technology to take up the challenges of energy transition, therefore it appears necessary to optimize the systems to use the right amount of raw materials. In our study, we have addressed the mechanical aspects and their impacts on performance of it. More specifically, the main objective of the proposed work is to understand the influence of fuel cell core design and mechanical properties on electrical resistances of internal system contacts. Indeed, electrical contact resistances are one of the important sources of losses and therefore require special attention. To achieve this, a Design of Experim…