Modeling and optimization of high temperature proton exchange membrane electrolyzer cells

Dongqi Zhao, Qijiao He, Xiaolong Wu, Yuanwu Xu, Jianhua Jiang, Xi Li, Meng Ni

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)

Abstract

Although high-temperature proton exchange membrane electrolyzer cells (HT-PEMECs) have been promising devices to store energy in recent years, the effect of certain parameters on their performance is still unclear. Therefore, a 2D multiphysics model is adopted to study the related processes of electrochemical reactions in an HT-PEMEC. The model is validated by comparison with electrochemical experimental data. Subsequently, the effects of applied voltage, anode water mass fraction, anode gas velocity, and cathode gas velocity on the multiphysics are studied, and the trends of efficiency and conversion rate are analyzed. Thermoneutral voltage is observed through a parametric study. Moreover, the maximum energy efficiency (54.5%) is obtained by optimizing the operating conditions. This study can be regarded as a foundation for the subsequent control and multi-objective optimization research.

Original languageEnglish
JournalInternational Journal of Green Energy
DOIs
Publication statusAccepted/In press - 2021

Keywords

  • energy efficiency
  • high temperature electrolysis
  • Multiphysics model
  • optimal operating conditions
  • proton exchange membrane electrolyzer cell

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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