Transient modelling of a multi-cell alkaline electrolyzer for gas crossover and safe system operation

• Published in: International journal of hydrogen energy Vol. 48; no. 88; pp. 34210 - 34228
• Main Authors: Oikonomidis, Silvestros, Ramdin, Mahinder, Moultos, Othonas A., Bos, Albert, Vlugt, Thijs J.H., Rahbari, Ahmadreza
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 30.10.2023
• Subjects: Alkaline water electrolysis; Gas crossover; Hydrogen; Potassium hydroxide; Transient modelling; Alkaline water electrolysis; Gas crossover; Transient modelling; Potassium hydroxide; Hydrogen

Due to the intermittency of renewable energy sources, alkaline water electrolyzers are typically operated at partial load compared to the nominal design value. It is well-known that gas crossover is dominant at low current densities leading to higher anodic hydrogen content and higher cathodic oxyge...