The main emphasis of this work is developing a 3D numerical model and investigating the performance characteristic of a direct ammonia fuelled protonic-conducting tubular solid oxide fuel cell (NH₃-T–SOFC–H) in comparison with the corresponding hydrogen-fuelled one and direct ammonia feed oxygen -ion conducting tubular solid oxide fuel cell (NH₃-T–SOFC–O) under the same operating parameters and geometrical shape. The findings revealed that NH₃-T–SOFC–H has outstanding performance over T–SOFC–O counterparts at intermediate temperature (973 K) when operated under similar working conditions and geometrical designs. On the other hand the NH₃-T–SOFC–O is promising for higher operating temperatures. The outcomes of the study are also confirmed that the power performance of NH₃-AS-T–SOFC–O is better than the other supports of both electrolytes when the anode electrode is constructed at the outside portion of the tubular cell. Yet, the other remarkable result found in this study is that NH₃– CS- T–SOFC–O has outstanding performance compared to all supports of both electrolytes when the fuel electrode is built in the inner portion of the tube. In addition, the finding indicates that the power performance of ammonia-fuelled tubular cells is strongly influenced by the anode position, operating temperatures, and pressures in both electrolytes yet the effect of cell temperature is more influential in the protonic-conducting cell. It is also observed that the performance of ES-T-SOFC is lower than AS- and CS-T-SOFC in both electrolytes and anode positions.

这项工作的主要重点是开发一个 3D 数值模型，并研究直接以氨为燃料的质子传导管状固体氧化物燃料电池（NH ₃ -T-SOFC-H）与相应的氢燃料电池和在相同的操作参数和几何形状下，直接氨进料氧离子传导管状固体氧化物燃料电池（NH ₃ -T-SOFC-O）。研究结果表明，在类似的工作条件和几何设计下运行时，NH ₃ -T-SOFC-H 在中温 (973 K) 下具有优于 T-SOFC-O 对应物的性能。另一方面，NH ₃-T-SOFC-O 有望用于更高的工作温度。研究结果还证实，当阳极电极构建在管状电池的外部时，NH ₃ -AS-T-SOFC-O的功率性能优于两种电解质的其他载体。然而，本研究中发现的另一个显着结果是 NH ₃– 当燃料电极安装在管的内部时，CS-T-SOFC-O 与两种电解质的所有载体相比具有出色的性能。此外，该发现表明，氨燃料管式电池的功率性能受阳极位置、工作温度和两种电解质中的压力的​​强烈影响，但电池温度的影响对质子传导电池的影响更大。还观察到，ES-T-SOFC 的性能在电解质和阳极位置均低于 AS-和 CS-T-SOFC。