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SABR REACTOR CORE & TRITIUM BREEDING BLKT W. M. Stacey Georgia Tech September, 2009

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SUB-CRITICAL ADVANCED BURNER REACTOR (SABR) ANNULAR FAST REACTOR 1.Fuel—TRU from spent nuclear fuel. TRU-Zr metal being developed by ANL. 2.Sodium cooled, loop-type fast reactor. 3.Based on fast reactor designs being developed by ANL in DoE Nuclear Program. TOKAMAK D-T FUSION NEUTRON SOURCE 1.Based on ITER plasma physics and fusion technology. 2.Tritium self-sufficient (Li 4 SiO 4 ). 3.Sodium cooled.

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NEUTRONICS ERANOS fast reactor fuel cycle code JEFFF2.0 cross-sections, 20 MeV-0.1eV P1 lattice cell calculation, 1968 groups, collapsed to 33 groups and homogenized over assembly. 2D RZ model, 91 radial and 94 axial mesh points,S-8.

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HEAT REMOVAL Calculated with RELAP5-3D Average power density 72.5 MW/m 3 3 loops—Na primary and intermediate, water secondary to steam. Primary— 2 separate loops, each with 4 EM pumps and 2 IHX. Core mass flow 8700 kg/s, T in =650K, T out = 940K, 450kW pumping with lithium-niobate insulator. Fuel T max =1087K, Clad T max =986K

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Li 4 SiO 4 Tritium Breeding Blanket 15 cm Thick Blanket Around Plasma (Natural LI) and Reactor Core (90% Enriched LI) Achieves TBR = NA-Cooled to Operate in the Temperature Window C. Online Tritium Removal by He Purge Gas System. Dynamic ERANOS Tritium Inventory Calculations for 700 fpd Burn Cycle (w/10% unavail, 60 d refueling shutdown, 10d startup) Indicated More Than Adequate Tritium Production.

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