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Table 3

Characteristics of the MSFR simulated in the neutronics benchmark.

Thermal power (MWth) 3000
Electric power (MWe) 1500
Fuel molten salt initial composition (mol%) LiF-ThF4-233UF4 or LiF-ThF4-(Pu-MA)F3
with 77.5% LiF
Fertile blanket molten salt initial composition (mol%) LiF-ThF4 (77.5–22.5%)
Melting point (°C) 565
Inlet/outlet operating temperature (°C) 650–750
Initial inventory (kg) 233U-started MSFR TRU-started MSFR
  Th 233U Th Actinide
  38 300 5 060 30 600 Pu 11 200
      Np 800
        Am 680
Cm 115
Density (g/cm3) 4.1249
Dilatation coefficient (g/(cm3 K)) [29] 8.82 × 10−4
Core dimensions (m) Radius: 1.1275
  Height: 2.255
Fuel salt volume (m3) 18
  9 out of the core
  9 in the core
Blanket salt volume (m3) 7.3
Fuel salt cycle time in the system (s) 4.0

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