磁場印加型アルカリ水電解における磁場印加方向が電解性能と気泡運動に及ぼす影響

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2022/03/01

タイトル(英語): Influence of Magnetic Field Direction on Electrolyzer Efficiency and Bubble Behavior in Alkaline Water Electrolysis with Magnetic Field

著者名: 兒玉　学（東京工業大学 工学院 機械系），平井　秀一郎（東京工業大学 工学院 機械系）

著者名(英語): Manabu Kodama (School of Engineering, Tokyo Institute of Technology), Shuichiro Hirai (School of Engineering, Tokyo Institute of Technology)

キーワード: アルカリ水電解，電磁流体，電気化学，水素製造　　alkaline water electrolysis，magnetohydrodynamics，electrochemistry，hydrogen production

要約(英語): Applying a magnetic field to a water electrolyzer is one of the methods to improve energy conversion efficiency from electrical energy to hydrogen energy. In this study, experiments of alkaline water electrolysis with a magnetic field are carried out to elucidate the influence of a magnetic field direction and a magnetic flux density on cell voltage and bubble movement. In the case with B⊥electrode, the cell voltage decreases with the increase in current density and magnetic flux density, because the bubbles are removed from the electrode and the electrolyte is mixed with Lorentz-force. In the case with B∥electrode, the cell voltage is suppressed in low current density conditions. However, in high current density conditions, the bubbles are trapped in the electrolyte and the cell voltage is increased.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.142 No.3 （2022）

本誌掲載ページ: 199-204 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/142/3/142_199/_article/-char/ja/