Evaluating the effectiveness of dilution of the recovered uranium with depleted uranium and low-enriched uranium to obtain fuel for VVER reactors

International Workshop on Physical and Chemical Processes in Atomic Systems

Smirnov, A Yu^1 ; Sulaberidze, G.A.^1 ; Dudnikov, A.A.^2 ; Nevinitsa, V.A.^2

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow

115409, Russia^1

National Research Center Kurchatov Institute, Moscow, Russia^2

关键词: Cascade schemes;    Depleted uranium;    Gas centrifuges;    Low-enriched uranium;    Natural uranium;    Numerical experiments;    Uranium enrichment;    VVER reactors;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/751/1/012005/pdf
DOI  :  10.1088/1742-6596/751/1/012005

来源: IOP

【 摘 要 】

The possibility of the recovered uranium enrichment in a cascade of gas centrifuges with three feed flows (depleted uranium, low-enriched uranium, recovered uranium) with simultaneous dilution of U-232,234,236 isotopes was shown. A series of numerical experiments were performed for different content of U-235 in low-enriched uranium. It has been demonstrated that the selected combination of diluents can simultaneously reduce the cost of separative work and the consumption of natural uranium, not only with respect to the previously used multi-flow cascade schemes, but also in comparison to the standard cascade for uranium enrichment.