Effect of internal current, fuel crossover, and membrane thickness on a PEMFC performance

The manuscript presents a development of a semi empirical model of performance of PEMFC using numerical simulations developed under CFD software. This semi empirical model describes the voltage-current behavior and allows calculate internal currents and fuel crossover for PEMFC system in which the voltage naturally reduces the OCV. The obtained results show that the internal currents and fuel crossover can be reduced by using thicker membrane and that the activation over potential increases as temperature increases.