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Modeling and performance optimization of a solid oxide electrolysis system for hydrogen production

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  • AlZahrani, Abdullah A.
  • Dincer, Ibrahim

Abstract

This article presents electrochemical and thermodynamic modeling and optimization of a high temperature solid oxide electrolysis (SOE) system for hydrogen and oxygen production. High temperature electrolyzers offer the significant advantage of high conversion efficiency compared with low temperature electrolyzers. However, the high operating temperatures limit the SOE utilization to resources where high temperature steam is externally provided, such as in nuclear and concentrated solar power plants. Herein, we report the design and thermodynamic performance of an SOE system at a capacity of 1 MWe, from which various renewable electricity resources can be utilized to produce hydrogen and oxygen from water. In order to investigate the standalone operation and eliminate the need for external heat, the SOE is examined while operating in an exothermic mode, where heat is internally generated, and in an endothermic mode, where heat is provided by electric heaters. Additionally, a network of heat exchangers is optimized to increase the system efficiencies and enable an efficient standalone operation. Thus, the SOE system can be adapted for renewable hydrogen production applications, such as wind and Photovoltaic (PV) farms. The influences of operating conditions on efficiencies, power demand, and exergy destruction rates of the SOE system are assessed, including a case of 15 MPa hydrogen storage. The energy and exergy efficiencies of the SOE system are obtained as 85.15% and 83.41%, respectively. Sensitivity and optimization analyses are also conducted in order to highlight SOE stability and optimum performance.

Suggested Citation

  • AlZahrani, Abdullah A. & Dincer, Ibrahim, 2018. "Modeling and performance optimization of a solid oxide electrolysis system for hydrogen production," Applied Energy, Elsevier, vol. 225(C), pages 471-485.
    • Handle: RePEc:eee:appene:v:225:y:2018:i:c:p:471-485
    DOI: 10.1016/j.apenergy.2018.04.124
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    Cited by:

    1. Jiming Yuan & Zeming Li & Benfeng Yuan & Guoping Xiao & Tao Li & Jian-Qiang Wang, 2023. "Optimization of High-Temperature Electrolysis System for Hydrogen Production Considering High-Temperature Degradation," Energies, MDPI, vol. 16(6), pages 1-18, March.
    2. Wang, Ligang & Chen, Ming & Küngas, Rainer & Lin, Tzu-En & Diethelm, Stefan & Maréchal, François & Van herle, Jan, 2019. "Power-to-fuels via solid-oxide electrolyzer: Operating window and techno-economics," Renewable and Sustainable Energy Reviews, Elsevier, vol. 110(C), pages 174-187.
    3. Sun, Yang & Wang, Ligang & Xu, Cheng & Van herle, Jan & Maréchal, François & Yang, Yongping, 2020. "Enhancing the operational flexibility of thermal power plants by coupling high-temperature power-to-gas," Applied Energy, Elsevier, vol. 263(C).
    4. d’Amore-Domenech, Rafael & Santiago, Óscar & Leo, Teresa J., 2020. "Multicriteria analysis of seawater electrolysis technologies for green hydrogen production at sea," Renewable and Sustainable Energy Reviews, Elsevier, vol. 133(C).
    5. Eveloy, Valerie, 2019. "Hybridization of solid oxide electrolysis-based power-to-methane with oxyfuel combustion and carbon dioxide utilization for energy storage," Renewable and Sustainable Energy Reviews, Elsevier, vol. 108(C), pages 550-571.
    6. Lee, Boreum & Lim, Dongjun & Lee, Hyunjun & Lim, Hankwon, 2021. "Which water electrolysis technology is appropriate?: Critical insights of potential water electrolysis for green ammonia production," Renewable and Sustainable Energy Reviews, Elsevier, vol. 143(C).
    7. Mastropasqua, Luca & Pecenati, Ilaria & Giostri, Andrea & Campanari, Stefano, 2020. "Solar hydrogen production: Techno-economic analysis of a parabolic dish-supported high-temperature electrolysis system," Applied Energy, Elsevier, vol. 261(C).
    8. Navas-Anguita, Zaira & García-Gusano, Diego & Dufour, Javier & Iribarren, Diego, 2020. "Prospective techno-economic and environmental assessment of a national hydrogen production mix for road transport," Applied Energy, Elsevier, vol. 259(C).
    9. Jalili, Mohammad & Ghazanfari Holagh, Shahriyar & Chitsaz, Ata & Song, Jian & Markides, Christos N., 2023. "Electrolyzer cell-methanation/Sabatier reactors integration for power-to-gas energy storage: Thermo-economic analysis and multi-objective optimization," Applied Energy, Elsevier, vol. 329(C).
    10. Xin, Yu & Xing, Xueli & Li, Xiang & Hong, Hui, 2024. "A biomass–solar hybrid gasification system by solar pyrolysis and PV– Solid oxide electrolysis cell for sustainable fuel production," Applied Energy, Elsevier, vol. 356(C).

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