Ammonia-Fed Solid Oxide Fuel Cell
Application ID: 126901
In this model of an ammonia-fed solid oxide fuel cell, the required hydrogen is supplied through endothermic thermal decomposition of ammonia. The model includes the full coupling between the mass balances and gas flow in the H2 and O2 gas diffusion electrodes, the momentum balances in the H2 and O2 gas flow channels, the energy balance across the cell, the balance of the ionic current carried by the oxide ion, and an electronic-current balance. A thermal decomposition reaction of ammonia is included in the H2 gas diffusion electrode domain.
The model computes the spatial distributions of the various species across the gas diffusion electrodes and gas flow channels. The model demonstrates that the solid oxide fuel cell is cooled down at the lower applied current density whereas the cell is heated up at the higher applied current density.
The model also demonstrates the use of Auxiliary species in the H2 gas mixture.
This model example illustrates applications of this type that would nominally be built using the following products:
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:
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.