Reaction Gas Pressure, Temperature, and Membrane Water Content Modulate Electrochemical Process of a PEMFC: A Simulation Study

Proton exchange membrane fuel cells (PEMFC) are widely used in transportation systems owing to their desirable characteristics such as high efficacy and low operating temperature. However, the cell exhibit load changes well voltage power losses so reduce dependence on battery. The aim of present study was explore composition basic working principle PEMFC. A PEMFC electrochemical reaction model then established according evaluate effects Nernst electromotive force, activation overvoltage, Ohmic concentration electric double layer. loss, loss were evaluated through simulation analysis. effect various factors dynamic output a 60 kW explored simulations. findings showed that change current modulated equivalent resistance. resistance decreased presence capacitor. with an increase current, whereas increased current. Increase partial pressure oxygen caused cell. internal chemical rate increases this provide basis for conducting further studies produce efficient application systems.