Mass Transport and Electrochemical Reaction in a Fuel Cell Cathode
Application ID: 458
A stationary 3D model of a generic fuel cell cathode describing the mass fraction distribution of oxygen, water, and nitrogen, as well as the current distribution.
The model uses Darcy's Law to describe convection, and couples this to Maxwell-Stefan diffusivities to also describe mass transport.
The model shows that the current density in this fuel cell cathode is mass transfer governed by the reactant.
This model example illustrates applications of this type that would nominally be built using the following products:Batteries & Fuel Cells Module
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
- COMSOL Multiphysics® and
- either the Batteries & Fuel Cells Module, or Chemical Reaction Engineering Module and
- either the Batteries & Fuel Cells Module, Corrosion Module, Electrochemistry Module, or Electrodeposition Module
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.