Santiago Salas Ventura, from the Institute of Engineering Thermodynamics, German Aerospace Center, DLR will present at the 18th International Symposium on Solid Oxide Fuel Cells (SOFC-XVIII) (May 28 – June 2, 2023) in Boston, USA.
The focus of the presentation “Transient Solid Oxide Cell Reactor Model Used in rSOC Mode-Switching Analysis and Power Split Control” on June 1, 2023 (17:20-17:40 CET/11:20-11:40 EDT) at Hynes Convention Center - Room 206 (Level Two), will be on operating strategies for transient operation of solid oxide cell (SOC) reactors, being studied as clean and efficient energy converters.
The use of solid oxide cells (SOC) in electrolysis-mode (SOEC) or fuel cell-mode (SOFC) is an efficient way to convert electrical energy into e.g. hydrogen or converting the chemical energy of fuels into electricity. In reversible solid oxide cell reactors (rSOC) these both modes are combined and the question is how to switch between them. In addition, with fluctuating power demands in SOFC mode operating strategies are needed to suppress thermal gradients that arise during mode transitions and power level variations. For that, experiments have been conducted, and a transient model has been developed to identify such strategies in the complete range of SOC operation comprising rSOC mode switching and SOFC load following.
A rule-based strategy for an SOFC/battery hybrid is presented that is effective in meeting power demand, while also limiting SOFC temperature gradients and ensuring the state of charge (SoC) of the battery stays within a specified range. However, it is important to note that different approaches will be tested, and the transient model for the large stack module (LSM) from SolydEra, as well as for the SOFC/battery hybrid, will need to be validated with an experimental campaign that is in process.
This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 861647.
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NAUTILUS is a short for Nautical Integrated Hybrid Energy System for Long-haul Cruise Ships.
This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 861647.