Water and Carbon Dioxide Co-Electrolysis in a Solid Oxide Electrolyzer Cell

Application ID: 121571


This example models co-electrolysis of H2O and CO2 using a solid oxide electrolyzer cell.

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 reversible water gas shift reaction is included in the H2 gas diffusion electrode and H2 gas flow channel.

The model computes the spatial distributions of the various species across the gas diffusion electrodes and gas flow channels. The spatial distribution of the total current density along the electrode length is also evaluated in the model using the general projection operator.

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