2020, 4 (37)

Operation of nuclear industry facilities

Article NameTolerant Fuel for WWER-1200 Reactors with High Thermal Conductivity
AuthorsA.Z. Alhmoud1, V.B. Kruglov2, H.A. Tanash3
Address

National Research Nuclear University «MEPhI», Kashirskoye shosse, 31, Moscow, Russia 115409

1ORCID iD: 0000-0002-8213-1455

e-mail: ahmad_homoud@yahoo.com

2e-mail: vbkruglov@mephi.ru

3e-mail: tanash_hamza@yahoo.com

AbstractThe main factor of destruction of fuel rods in accidents with loss of coolant is associated with the vapor-zirconium reaction occurring between the fuel rod shell and the coolant (water). Improving the reliability of fuel cells can be obtained by modifying or replacing the fuel shell, materials that do not interact with the coolant during normal operation and in emergency situations. Increasing the reliability and economic characteristics of nuclear power plants is possible by replacing uranium dioxide with fissile compositions with a high content of fissile isotopes and with greater thermal conductivity. These two provisions form the concept of ATF (tolerant fuel). Variants of creation of tolerant fuel are considered., variants of modernization of shells and fissile compositions are studied for nuclear power plants with WWER reactors.
Keywordstolerant fuel, thermal conductivity, high temperature, uranium dioxide, zirconium, accidents with loss of coolant associated with water reaction
LanguageRussian
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