特集 「水電解技術の課題と期待」
FREAにおけるアルカリ型水電解装置に関連する研究開発
キーワード:
Renewable energy,
Alkaline water electrolyzer,
Hydrogen,
Methylcyclohexane,
Dynamic simulator
2022 年 47 巻 1 号 p. 42-49
詳細
2022 年 47 巻 1 号 p. 42-49
Research and Development on hydrogen energy systems including water electrolysis, methylcyclohexane (MCH) production, ammonia synthesis, and/or, power generation by internal combustion engines have been performed in Fukushima Renewable Energy Institute, AIST (FREA). Hydrogen production by water electrolysis is one of the most important technology to store and transport a large amount of energy, and, to use unstable electricity generated by renewable sources. We investigated an alkaline water electrolyzer performance and characteristics under fluctuating current conditions. The electrolyzer is connected to hydrogenation reactors to produce MCH, which is one of a liquid organic hydrogen carrier (LOHC). A control method for fluctuating operation was developed and successfully applied to the MCH production system. For further development of integrated system and its control, dynamic simulation technologies are effective. We have developed a dynamic simulator of alkaline water electrolyzer considering temperature change in fluctuating operation.
