Effect of Gas Flow Velocity in the Channels of Consumption Reactants in a Fuel Cell Type (PEMFC)

In this work, an isothermal and unsteady three-dimensional model is developed to study the influence of physical and geometric parameters, gas flows in channels, on the consumption of reagents in a fuel cell exchange membrane protons (PEMFC). The equations governing the problem were solved by the finite volume method with a power scheme. The problem of pressure-velocity coupling was solved by the method of projections . The results show that: the decrease in the rate of gas flow in the channels makes consumption of reagents more uniform. The enlargement of the latter also leads to the same result. The installation of an obstacle, improves consumption of reagents in the case of high speeds.