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Information × Registration Number 0220U100359, 0116U007187 , R & D reports Title In materials research and study estimated the applicability of structural, neutron-absorbing material in nuclear and advanced nuclear fuel cycle, Ukraine popup.stage_title Head Krаsnorutskyi Volodymyr S., Кандидат фізико-математичних наук Registration Date 16-01-2020 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description2  The purpose of material, calculation and economic research is the substantiation of the five-year fuel cycle of VVER-1000 reactors in Ukraine. The proposed four- and five-year fuel cycles offered in this report allow: a. to reduce the number of the recharging fuel assemblies, b. to reduce the amount of radioactive wastes, c. to reduce the flux of fast neutrons to the RPV internals and the reactor pressure vessel, which contributes to the prolongation of the reactor life. In experimental studies of the deformation and geometric dimensions of FA- WR after 1-4 years of operation under VVER-1000 core conditions up to a burnup more than ~ 45 GW day/tU, it was shown that the technical condition of the fuel assemblies that have been inspected for all types of measurements made for the FA-WR the numerical values of the measured parameters do not exceed the values laid down in the design of the fuel and the justification for operational safety. Based on the foregoing, it can be concluded that according to the parameters controlled by the FIRE equipment, the FA-WR after four fuel cycles has not exhausted its resource and has a sufficient supply of controlled values and parameters to achieve higher burnups. It is shown experimentally that in terms of corrosion resistance of zirconium alloys Zr-1%Nb, tested under out of pile conditions as fuel rod cladding line samples, possessed high corrosion resistance for 45,000 h, which corresponds to 6-7 fuel cycles of fuel rod operation in the VVER-1000 reactor. It is shown that when using a five-year fuel cycle with FA-WR with reduced radial neutron leakage, the fuel component of the cost of electricity generated is by 13.9% less than in the four-year fuel cycle with Russian TVSA. Product Description popup.authors Abdullayev Akif M. Gamov Oleh I. Grytsyna Viktor M. Zhukov Oleksandr I. Krаsnorutskyi Volodymyr S. Maryokhin Sergiy V. Matyushchenko Roman V. Moskvitina Yuliya K. Sleptsov Oleksiy M. Sleptsov Sergiy M. Tatarinov Volodymyr R. Cherniaieva Tetiana P. popup.nrat_date 2020-04-02 Close