Cycle extension in Slovak VVER-440 reactors to 14 months

29th Symposium of AER on VVER Reactor Physics and Reactor Safety (2019, Energoland, Mochovce NPP, Slovakia)
[3] fuel management issues


R. Zajac, J. Majerčík and C. Strmenský


VVER-440 reactors have been utilized in Slovakia since 1978. Up to now, the length of their operating cycle has not change. This paper presents a proposal of extending the cycle from 12 to 14 months. Main attention is paid to the selection of the equilibrium fuel cycle. In this selection, the current fuel was considered with respect to relevant limits.