Possibilities of Using Hypostoichiometric Uranium Dioxide in Thermionic Fuel Elements 929238
Advantages of using UO2-X in fuel elements are discussed.
Change of the initial uranium dioxide content due to burn-up, themal diffusion, as well as fuel component carry-over through the fuel element cladding and vent system is calculated. It is shown that while the fuel element works, the oxygen coefficient increases. The initial value of O/U=1.990-1.998 providing preservation of the hypostoichiometric content during life time is recommended.
The authors results on UO2-X structure investigation under conditions of heating-cooling and long storage, as well as comparative data on free swelling are given besides literature data on UO2-X properties.
Citation: Gontar, A., Gutnik, V., Lubimov, D., Nikolaev, Y. et al., "Possibilities of Using Hypostoichiometric Uranium Dioxide in Thermionic Fuel Elements," SAE Technical Paper 929238, 1992, https://doi.org/10.4271/929238. Download Citation
A. S. Gontar, V. S. Gutnik, D. Yu. Lubimov, Yu. V. Nikolaev, A. S. Panov, Ye. M. Rakitskaya
Research Institute of Scientific Industrial Association“Lutch”
27th Intersociety Energy Conversion Engineering Conference (1992)