Thomas Fuerst: Tritium Transport in Molten-Salt Reactors @ ORNL MSRW 2022
Автор: Thorium Remix
Загружено: 2022-10-29
Просмотров: 1599
Описание:
Tritium in MSRs:
Tritium produced from neutron irradiatior of Li, Be, and F, and ternary fission.
FLiBe (2LiF-BeF2) best for thermal-hydraulic and neutronic properties
Tritium production rates estimated to be similar to CANDU reactors
Enrichment in 7Li to limit tritium production (small thermal neutron cross section)
Natural 6Li (7.5%) to produce tritium (large neutron cross section)
Needed for 3He, security, and fusion plant start-up inventories
Tritium Release Pathways: Tritium is highly mobile and diffuses throughout system - major issue for safety and licensing.
Migration Pathway:
1. Tritium production (neutrons + Li)
2. Speciation/corrosion (TF vs T2)
3. Graphite interaction
4. Evolution into plenum/off-gas system
5. Diffusion through primary system structural materials
6. Diffusion into secondary coolant
7. Diffusion through secondary system structural materials
8. Release from secondary system plenum/off-gas system
9. Onwards into ternary system
http://ThoriumRemix.com/ Thorium & MSR & Nuclear assets used in Thorium Remix project.
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