Stationary TVSA Fuel Cycles at Kozloduy NPP WWER-1000 Reactors

K. Kamenov / Kozloduy NPP Plc. / Bulgaria

16th Symposium of AER on VVER Reactor Physics and Reactor Safety (2006, Bratislava, Slovakia)
Fuel Management


The old designed Russian fuel assemblies TVS-M have been under operation for many years at Kozloduy NPP WWER-1000 reactors. It was gained a lot of experience with TVS-M assemblies operation and a distortion tendency was found out. To avoid this problem a decision for a gradually substitution of TVS-M fuel assemblies with advanced ones (TVSA) has been taken.
Two different stationary fuel cycles with 42 and 48 fresh TVSA fuel assemblies are presented and discussed in this paper.
The KASKAD computer code system is used for development of the fuel loading patterns of Units 5&6 at Kozloduy NPP.


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