Персона: Савандер, Владимир Игоревич
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Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
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Владимир Игоревич
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- ПубликацияОткрытый доступThe effect of burnable absorbers (Gd and Eu) on the neutronphysical characteristics of fuel assemblies of VVER-1000 reactors(2019) Abu, Sondos, M. A.; Demin, V. M.; Savander, V. I.; Демин, Виктор Максимович; Савандер, Владимир Игоревич© 2019 Published under licence by IOP Publishing Ltd. The problem of the use of burnable absorbers (BAs) in VVER-type reactors is considered to reduce the volume of "liquid" regulation of excess reactivity margin for fuel burnup. As such, natural gadolinium and europium are considered in the form of Gd 2 O 3 and Eu 2 O 3 , placed in integrated form with uranium fuel in fuel rods. The ratio of fuel rods with BAs and conventional fuel elements is 1:6. Variants of both the homogeneous location of the BAs and heterogeneous, including for the mixed use of these BAs were considered. The strong influence of the BAs composition and their location in the fuel elements on the dependence of the multiplication factor on fuel burnup is shown.
- ПубликацияОткрытый доступInvestigation of using U-233 in thorium base instead of conventional fuel in Russian PWR by SERPENT Code(2020) Abu, Sondos, M. A.; Hassan, A. A.; Alassaf, S. H.; Savander, V. I.; Afanasyev, V. V.; Савандер, Владимир Игоревич; Афанасьев, Валерий Викторович© Published under licence by IOP Publishing Ltd.In this work, the fuel assembly of type TVS-2006, which is used in Russian reactor VVER-1200, is considered. A proposed fuel of Thorium and Uranium-233 ((Th232+U233)O2 has been investigated to replace the fuel currently used (U238 as a fertile and U235 as fissile). This has been done in order to compare the; conversion ratio, reproduction factor (?), burnup, effective delayed neutrons fraction (ßeff), Minor Actinides (MA) inventory, and Temperature coefficients of reactivity. The calculations performed using the Monte Carlo code (SERPENT-2.31) to analyze and compare the two fuels. Results showed that using U-233 in the Thorium base will considerably increase the reactivity at the Beginning Of Cycle (BOC), increase the conversion ratio, and burn up. Besides, the safety parameters for the proposed Th-based fuel, in general, lower than that for Low Enriched Uranium (LEU) but still acceptable.
- ПубликацияОткрытый доступUse of erbium as a burnable absorber for the VVER reactor core life extension(2020) Alassaf, S. H.; Savander, V. I.; Hassan, A. A.; Савандер, Владимир Игоревич