Ammonia has been studied as a carbon-free energy carrier. In this work, performances of 200W-class solid oxide fuel cell (SOFC) stack using ammonia instead of hydrogen are evaluated to investigate whether ammonia can be a substitute for hydrogen. This stack consists of some constituents being resistance to ammonia at operating temperature of 700-800°C. In addition, ammonia is supplied directly into an anode chamber without using a reformer. The ammonia-fueled SOFC stack achieves almost same performances as that of the hydrogen-fueled one.
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