Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

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S. M. Pelykh, M. V. Maksimov, M. V. Nikolsky

Odesa National Polytechnic University, Odesa, Ukraine

Abstract: Considering a VVER-1000 fuel assembly averaged fuel element (FE), based on the accepted FE cladding damage limit value, the FE cladding failure probability was determined, thus the possibility of this reliability prediction by means of controlling the factors determining the FE properties has been proved. The appropriateness of innovation development of the automated program-technical complex controlling the FE properties at VVER design and operation stages, lowering the FE cladding failure probability and, at the same time, increasing the VVER operation economic efficiency, has been proved.

Keywords: VVER, fuel element cladding, cladding reliability prediction.

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