Presenter Information

Manjur Basnet, Utah State University

Class

Article

College

College of Engineering

Department

Mechanical and Aerospace Engineering Department

Faculty Mentor

Nicholas Roberts

Presentation Type

Poster Presentation

Abstract

Low cost and large stack manufacturing have favored the commercialization of low temperature Alkaline Electrolyzers (AEL). However, due to the nature of its operation at lower current density and temperature, AEL systems have a lower hydrogen production rate and efficiency as compared to its counterparts, PEM (Proton Exchange Membranes) and SOE (Solid-Oxide Electrolysis). Studies related to the use of higher temperature and use of advanced materials for diaphragm and electrocatalysts have been conducted. These studies are aimed at improving the performance of AEL systems without significantly increasing the cost. This study focuses on a review study of the existing technologies and the procedures used in increasing the efficiency and load-following capabilities of the AEL systems. The study will also focus on the thermodynamic analysis of AEL systems and rooms for improvement in thermodynamic performance through minimization of ohmic resistance in the stacks. Moreover, the study is aimed to provide a critical analysis on the steps that could be undertaken for future studies. This paper will thus provide the current status of the AEL systems and a discussion and evaluation of the methodologies being implemented for its improvement.

Location

Logan, UT

Start Date

4-12-2023 2:30 PM

End Date

4-12-2023 3:30 PM

Included in

Engineering Commons

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Apr 12th, 2:30 PM Apr 12th, 3:30 PM

Advances in Alkaline Water Electrolysis and Way Forward: A Review

Logan, UT

Low cost and large stack manufacturing have favored the commercialization of low temperature Alkaline Electrolyzers (AEL). However, due to the nature of its operation at lower current density and temperature, AEL systems have a lower hydrogen production rate and efficiency as compared to its counterparts, PEM (Proton Exchange Membranes) and SOE (Solid-Oxide Electrolysis). Studies related to the use of higher temperature and use of advanced materials for diaphragm and electrocatalysts have been conducted. These studies are aimed at improving the performance of AEL systems without significantly increasing the cost. This study focuses on a review study of the existing technologies and the procedures used in increasing the efficiency and load-following capabilities of the AEL systems. The study will also focus on the thermodynamic analysis of AEL systems and rooms for improvement in thermodynamic performance through minimization of ohmic resistance in the stacks. Moreover, the study is aimed to provide a critical analysis on the steps that could be undertaken for future studies. This paper will thus provide the current status of the AEL systems and a discussion and evaluation of the methodologies being implemented for its improvement.