A Simplified Supercritical Fast Reactor with Thorium Fuel

Table 4

SCFR core parameters with different fuel options.

Parameters	Th-MOX	ThMOX + MOX
Fuel forms
Inner	(RGPu + Th)O2	(RGPu + Th)O2
Outer	(RGPu + Th)O2	(RGPu + DU)O2
Enrichment/%
Inner	8.5	8.5
Outer	7.5	6.0
Batch number
Inner	3	3
Outer	4	5
Core 𝑘eff (0~550 EFPDs)	1.031~1.049	1.030~1.050
Maximum PPF	1.48	1.98
Average discharge burnup/MWd/kgHM
Inner	57.2	68.4
Outer	71.0	64.5
Whole core	62.9	67.0
Maximum discharge burnup/MWd/kgHM
Inner	61.1	76.0
Outer	74.2	71.8
FIR
Inner	1.01	1.01
Outer	0.81	1.01
Whole core	0.93	1.01