Core periphery power tilt benchmark for VVER-440

definition. P. Darilek, V. Chrapciak, J. Majercik, VUJE, Inc., Slovakia

20th Symposium of AER on VVER Reactor Physics and Reactor Safety (2010, Hanasaari, Espoo, Finland)
Reactor physics experiment and code validation

Abstract

The unstable accuracy of power forecasts at periphery fuel pins and utilization of exploitation
data from VVER-440 reactors are main motivations for benchmark definition. Second
generation fuel assemblies with mean enrichment 4,25 % at 5-year cycle at Unit 4 of NPP
Bohunice are analyzed with emphasis on the last cycle. Starting point, calculated period and
results are characterized. SCORPIO data will be used for comparison.

Presentation / full paper