Simulation of electrochemical and gas dynamic processes occurring in a PEM fuel cell

Simulation of complex electrochemical processes occurring inside a PEM fuel cell is a necessary condition for the design of PEM fuel cell. At present, during testing of the PEM fuel cell, there is no possibility to examine the fields inside the PEM fuel cell.. This article presents the results of modeling a PEM fuel cell in the Ansys Fluent software package with the connection of an additional PEM Fuel Cell module. The characteristics of a conformal computational grid constructed in several stages are given. It is established that during the course of the electrochemical reaction, the humidity of the anode and cathode gas changes in different ways. With a large mass fraction of water vapor in the anode gas compared to the cathode gas, humidity is more susceptible to temperature fluctuations. Current-removing plates remove most of the heat release from the electrochemical reaction, and gases remove no more than 5% of the heat release.