About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Prediction and Measurement of Hydrogen Behavior in the ARC FLiBe Blanket |
| Author(s) |
Alexander A. Khechfe, Guiqiu Zheng, William McInerney, Caroline Sorensen Barthel |
| On-Site Speaker (Planned) |
Alexander A. Khechfe |
| Abstract Scope |
Commonwealth Fusion Systems (CFS) is using 2LiF-BeF2 (FLiBe) as a liquid blanket for its upcoming ARC fusion power plant, which will produce 400 MW of electricity in the early 2030s. Critical to ARC’s continuous operation is the favorable speciation of tritium bred in the blanket as T2, rather than TF or T2O. Additionally, accurate measurements of solubility and diffusivity of H2 in FLiBe are crucial to sizing and evaluation of tritium extraction units. To this end, we have developed a workflow for predicting a favorable redox operating regime for the ARC FLiBe blanket based on tritium speciation. We also have developed systems for measuring hydrogen properties in FLiBe with simultaneous electrochemical measurements to reduce uncertainty in key hydrogen properties in FLiBe. Taken together, this work will reduce technical risk around tritium behavior in ARC’s blanket systems and help enable an economic and safe fusion power plant. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Other, |