The membrane electrode assembly (MEA) of a proton exchange membrane (PEM) consists of various porous layers: gas diffusion layer (GDL), micro porous layer (MPL), catalyst layer (CL) and membrane. GeoDict is used by fuel cell developers to generate detailed three-dimensional geometric models and characterize a number of material properties of these models, with the goal of optimizing each of the layers to its requirements and improving the performance of the cell.
▪PEMFC (Proton Exchange Membrane Fuel Cells)
▪SOFC (Solid Oxide Fuel Cells)
The fuel cell layer models are created with the FiberGeo and GrainGeo modules. The central topic in fuel cell research, water management and the resulting two-phase fluid flow properties, are also addressed with GeoDict .For this, the water is virtually distributed in the structures using the SatuDict module, and various solvers for partial differential equations are applied on the resulting partially saturated structures. Afterwards, the solvers from the GeoDict modules FlowDict , DiffuDict, and ConductoDict can be used to characterize fluid flow, diffusion, and thermal and/or electrical conductivity .