Numerical and Theoretical Study of Performance and Mechanical Behavior of PEM-FC Using Innovative Channel Geometrical Configurations

Proton exchange membrane fuel cell (PEM-FC) aggregation pressure causes extensive strains in segments. The compression of each segment takes place through the modeling method. In addition, a very heterogeneous compressive load is produced because recurrent channel rib design dipole plates, so that while high are provided below rib, domain continues its initial uncompressed case under ducts approximate to it. This leads significant spatial variations thermal and electrical connections contact resistances (both rib–GDL membrane–GDL interfaces). Variations heat, charge, mass transfer rates within GDL can affect performance (FC) lifetime. this paper, two scenarios considered verify lifetime PEM-FC using different innovative geometries. first scenario conducted by adopting constant height (H = 1 mm) for all differently shaped channels studied. contrast, second taking cross-sectional area (A mm2) studied channels. Therefore, computational fluid dynamics model (CFD) PEM formed assembly FC simulate inside simulation results showed triangular cross-section uniformity distribution, with lower deformations mechanical stresses. analysis helped gain insights into physical mechanisms lead FC’s durability identify important parameters conditions. shows it assume intracellular configuration toward appearance containing limited experimental data. also proved better voltage occurs rectangular cross-section, therefore, higher power from FC, although much compared channel. gave voltages, (0.63 W) cell, gives other