Research Article
Conceptual Engineering of CARA Fuel Element with Negative Void Coefficient for Atucha II
Table 4
Main results obtained for CARA fuel in Atucha II with safe coolant void coefficient compared with the original Atucha II fuel bundle.
| FUEL | 1st ring | 2nd ring | 3rd ring | 4th ring | PPF | Void coeff (mK) | Ref. cost (mill$/KWh) |
| Atucha II original | nat | nat | nat | nat | 1.098 | 15.36 | 6.46 | CARA | 2 0.25 cm radius Dy2O3 rods+2 0.35% UO2 rods | 1.4 | 2.4 | 1.9 | 1.187 | 5.36 | 3.54 | CARA | 2 0.425 cm radius rods+2 0.35% UO2 rods | 1.4 | 2.4 | 1.9 | 1.22 | −1.54 | 4.96 |
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