Study of Thorium-Plutonium Fuel for Possible Operating Cycle Extension in PWRs

Table 3

Calculated safety parameters for the representative transients SLB, REA, and RWAP. For REA, the parameters and limits are for EOC conditions. For SLB and RWAP, the same limits are employed throughout the cycle and the parameters which are listed for the moment in the cycle where they are closest to these limits.

Parameter	Limit	UOX-ref	Th-MOX
SLB at HZP, limiting moment
Min DNBR [−]	2.93	4.56	5.37
SLB at HFP, limiting moment
Min DNBR [−]	1.36	1.86	1.93
Max LHGR [W/cm]	545	426	440
REA at HZP, EOC
Max ERW [$]	2.55	0.99	1.12
Max 𝐹𝑄 [−]	59.2	15.3	9.48
REA at HFP, EOC
Max ERW [$]	0.30	0.056	0.047
Max 𝐹𝑄 [−]	5.75	2.183	2.079
RWAP at HFP, limiting moment
Max DRW [pcm/cm]	50	11.95	10.88