Parametric Study of Ammonia-Fueled Tubular AP-SOFC with Temkin-Pyzhev Kinetic Model
The energy crisis and environmental concerns in recent decades are a serious challenge to human life. The fuel cell, especially the solid oxide type, has been welcomed due to its features such as fuel flexibility, good efficiency and no need for precious metals. However, the problems of hydrogen fuel, such as the low energy density of the gas phase, difficult storage and portability, have suggested ammonia as a suitable alternative fuel. In this research, tubular all porous solid oxide fuel cell ammonia fueled has been simulated and investigated. Therefore, the equations of conservation of mass, momentum, energy, species and electric flux are defined, coupled and solved in the form of finite element code. The results show that the presence of electrolyte porosity increases the efficiency of fuel cell ammonia fueled. It was also observed that the power and current density of the fuel cell have a direct relation with the operation temperature and flow rate and an inverse relation with the porosity of the electrodes.
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