| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Chemistry Control for Fluoride Salt-Cooled High-Temperature Reactors |
| Author(s) |
Ryan Gallagher, Francesco Carotti, Sam Mossadeghian, Tristan Johnson, Jacob McMurray, Jake Quincey, Gus Merwin, Alan Kruizenga |
| On-Site Speaker (Planned) |
Ryan Gallagher |
| Abstract Scope |
Kairos Power's fluoride-salt-cooled high-temperature reactor (KP-FHR) utilizes molten Flibe (2:1 molar LiF) as the primary coolant. Monitoring and controlling Flibe chemistry is necessary for optimal, long-term operations of the KP-FHR. Impurities introduced during operation can affect the stability, corrosivity, and radioactivity of the coolant. Oxidizing impurities (e.g., H2O, O2) from cover gas contamination can drive corrosion and limit component lifetimes. Corrosion product accumulation in the salt can lead to undesired solubility-driven material deposition. Furthermore, the radioactive impurities can influence the dose consequences under accident scenarios. Kairos Power’s chemistry control approach uses multiple strategies to monitor and mitigate these effects. These include electrochemical monitoring, reductant additions to maintain redox, cover gas analysis, and salt impurity verification via sampling with ex-situ analytical chemistry. This talk discusses the fundamentals, applications, and recent experimental results focused on advancing KP-FHR chemistry control methodologies. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, High-Temperature Materials, Environmental Effects |