Conceptual Engineering of CARA Fuel Element with Negative Void Coefficient for Atucha II

Table 2

Validation results on the void reactivity.

Core	W5-CIT	Experim.^KAERI [8]	MCNP^KAERI [8]
1.2% ^235U	−47	−44	243
5 Spu (1)	−199	−441	143
5 Spu (5)	−712	−928	−436
5 Spu (9)	−1207	−1410	−933
5 Spu (13)	−1624	−1791	−1343
5 Spu (21)	−2152	−2306	−1838
5 Spu (25)	−2354	−2406	−2048
8 Spu (1)	−407	−629	−78
8 Spu (5)	−1821	−1918	−1532
8 Spu (9)	−2977	−3165	−2845
8 Spu (13)	−3845	−3786	−3596
8 Spu (21)	−4934	−4836	−4786
8 Spu (25)	−5195	−4980	−4998