Development of thermal control strategies for solid oxide electrolysis cell systems under dynamic operating conditions - Hot-standby and cold-start scenarios

Jun Yong Kim, Luca Mastropasqua, Alireza Saeedmanesh and Jack Brouwer

Energy, 2025, vol. 317, issue C

Abstract: Hydrogen can be produced with solid oxide electrolysis cells (SOEC) at high temperature with higher electric-to-hydrogen efficiency compared to existing low temperature electrolysis cells. But, SOEC systems are not known to operate in a highly dynamic fashion, which may be required for integration with renewable primary energy. We propose and study thermal management strategies for SOEC systems under dynamic operating conditions including hot-standby and cold-start operations. During the startup process from room temperature, the necessary heating is provided by electric heaters, which are activated at the start of the operation. During the full shutdown process, electric heaters are deactivated, and cooling is provided only by the air blower. The developed model shows that the proposed system can operate dynamically at a very high ramp rate of 0.073 A/cm2 per minute in the case of an urgent rapid shutdown or start up to and from hot-standby, and can also safely manage the dynamics of a complete shutdown and cold-start operation.

Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:317:y:2025:i:c:s0360544225003214

DOI: 10.1016/j.energy.2025.134679

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