A Comprehensive Survey of Alkaline Electrolyzer Modeling: Electrical Domain and Specific Electrolyte Conductivity

Frank Gambou, Damien Guilbert, Michel Zasadzinski and Hugues Rafaralahy
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Frank Gambou: Group of Research in Electrical Engineering of Nancy (GREEN), Université de Lorraine, F-54000 Nancy, France
Damien Guilbert: Group of Research in Electrical Engineering of Nancy (GREEN), Université de Lorraine, F-54000 Nancy, France
Michel Zasadzinski: Research Center for Automatic Control of Nancy (CRAN), UMR CNRS 7039, Université de Lorraine, F-54000 Nancy, France
Hugues Rafaralahy: Research Center for Automatic Control of Nancy (CRAN), UMR CNRS 7039, Université de Lorraine, F-54000 Nancy, France

Energies, 2022, vol. 15, issue 9, 1-20

Abstract: Alkaline electrolyzers are the most widespread technology due to their maturity, low cost, and large capacity in generating hydrogen. However, compared to proton exchange membrane (PEM) electrolyzers, they request the use of potassium hydroxide (KOH) or sodium hydroxide (NaOH) since the electrolyte relies on a liquid solution. For this reason, the performances of alkaline electrolyzers are governed by the electrolyte concentration and operating temperature. Due to the growing development of the water electrolysis process based on alkaline electrolyzers to generate green hydrogen from renewable energy sources, the main purpose of this paper is to carry out a comprehensive survey on alkaline electrolyzers, and more specifically about their electrical domain and specific electrolytic conductivity. Besides, this survey will allow emphasizing the remaining key issues from the modeling point of view.

Keywords: alkaline electrolyzer; hydrogen generation; modeling; dynamic operation; electrolyte conductivity (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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