Question

A reactor operating at a power of 1176 MW(e) at 34% efficiency contains 764 fuel assemblies, all of identical design, each assembly having 76 fuel rods. Cycle 5 of the unit had a fuel loading of 100 t and operated for 690 EFPD. A fuel rod’s burnup at the start of cycle 5 was 22.4 MWd/kg, and its relative power fraction averaged over the cycle was 1.12.

(a) What was the fuel rod’s burnup in MWD/kg at the end of the cycle?

(b) What is the fuel rod’s power sharing for the cycle—that is, what fraction of the total energy generated by the core for the cycle was generated in the fuel rod?

Answer 1