Numerical Modeling of Electrolyte-Supported Button Solid Oxide Direct Carbon Fuel Cell Based on Boudouard Reaction

Abstract

The solid oxide direct carbon fuel cell (SO–DCFC) is a vital future technology for producing high-efficiency and environmentally friendly electricity. To improve the performance of SO–DCFC, it is required to examine the optimal operation condition selection and anode reaction process optimization. The DCFC reaction model is derived from the anode Boudouard reaction in this study. Electrochemical reaction dynamics, mass transfer, and electrode processes are incorporated into the model. Higher Boudouard reaction rate, gasification rate, and power density of anode carbon were discovered to impact the performance of fuel cells directly. In addition, simulation provides the CO concentration and current density distribution under different output voltage settings, which can be used to assess the performance and give a basis for the best design of DCFC.