Abstract:Proton exchange membrane fuel cells (PEMFCs) are not subject to the Carnot cycle, and it, high energy conversion efficiency, are considered to be one of the most promising green energy conversion devices. It is more than important to optimize and study the operating parameter control in order that the operating potential of fuel cell is maximized. In this paper, a three-dimensional monomer model of proton exchange membrane using multiple parallel serpentine channels is established by ANSYS/FLUENT. Simulation and calculates performance changes at different operating pressure (101.325 kPa, 202.65 kPa, 303.975 kPa), the inlet temperature (300 K and 330 K), and the heat transfer rate (5 W/m2-K, 40 W/m2-Kand 60 W/m2-K), and analyze the performance of the change under different coupling of operating parameters and the effects of parameters on the fuel cell performance. The results show that each operating parameter has a significant impact on the change and distribution of current density and temperature in the fuel cell; the performance of fuel cell increases to some extent with the increase of heat transfer rate, operating pressure and inlet temperature, and decreases with the increase of working voltage; when the operating voltage is 0.9 V, the influence of voltage on the performance of the fuel cell dominates; when the voltage is 0.5 V, the heat transfer rate is 60 W/m2-K, and the operating pressure is 303.975 kPa, the current density reaches 0.81 A/m2, which is the maximum value.