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Information × Registration Number 0213U004443, 0111U007673 , R & D reports Title Material science and design-engineering development of advanced nuclear and neutron absorbing materials, core elements on their basis and validation of their reliability, integrity and safety popup.stage_title Head Krasnorutskyy Volodymyr Semenovich, Registration Date 17-12-2013 Organization National Science Center "Kharkov Institute of Physics & Technology" National Academy of Science, Ukraine popup.description2 The experience of different countries on zinc injection into the NPP reactor coolant system was analyzed. It was demonstrated that zinc injection slows down the rate of general and intercrystalline corrosion, which reduces the amounts of corrosion products in the primary coolant as well as the radiation level in the primary circuit, as a consequence. It was demonstrated that gaseous hydrogen injection directly into the primary circuit instead of ammonia or hydrazine reduces the amounts of radioactive waste and facilitates the optimum primary coolant chemistry management. VVER primary circuit structural materials were corrosion-tested at a temperature of 350 and 325°C for 3,000 hours. The options of enhancing the primary coolant chemistry in Ukraine's VVER reactors were considered. The resident zirconium alloy E110 and the experimental Ukrainian alloy Zr1Nb (KTC-110) in the VVER-1000 were subjected to autoclave corrosion tests in the primary coolant composition environment. Both alloys, which were tested in the form of fuel rod tubes, demonstrated high corrosion resistance during 50,000 hours, which translates to 6-7 fuel cycles in a reactor. It was demonstrated that based on the experimental data obtained, the operation lifetime of the fuel rod cladding will not be limited by any of the corrosion parameters, and the fuel rods are equally expected to perform in a longer fuel cycle. Product Description popup.authors Іщенко Надія Іванівна Абдулаєв Акіф Мірдадаш огли Антонова Ганна Іллінічна Бєлаш Микола Миколайович Ганн Володимир Васильович Грицина Віктор Михайлович Жуков Олександ Іванович Зуйок В.А. Корнєєва Віра Василівна Красноруцький Володимир Семенович Куштим Антор Володимирович Куштим Яна Олексіївна Матющенко Роман Вікторович Остапов Артем Віталійович Петельгузов Іван Антонович Редкіна Ганна Петрівна Рудь Роман Олександрович Рябчиков Сергій Дмитрович Свириденко Сергій Петрович Слабоспицька Олена Олександрівна Степаненко Олександр Михайлович Татарінов Володимир Романович Третяков Михайло Віталійович Чернов Ігор Олександрович Черняєва Тетяна Павлівна popup.nrat_date 2020-04-02 Close