Optimization of Conceptual Solutions for the RBETs-M Lead–Bismuth Fast Reactor

Alekseev, P. N.; Mikityuk, Konstantin; Васильев, А. В.; Fomichenko, P. A.; Shchepetina, T. D.; Субботин, С. А.

doi:10.1023/b:aten.0000047681.87033.2e

Cited by 7 publications

(2 citation statements)

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“…For calculation studies on the transmutation of MAs, a modified core of the RBEC reactor (Alekseev et al 2004) was used, in which the volume fraction of fuel = 0.233, of steel = 0.116, of the coolant = 0.625, and of the gap = 0.028. Uranium-plutonium fuel was substituted for uranium-thorium fuel with the addition of americium.…”

Section: Calculation Studies Of the Americium Transmutation In A Fast...mentioning

confidence: 99%

Comparison of the minor actinide transmutation efficiency in models of a fast neutron uranium-thorium fueled reactor

Korobeinikov¹,

Kolesov²,

Михалев³

2022

NUCET

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In terms of nuclear raw materials, the issue of involving thorium in the fuel cycle is hardly very relevant. However, in view of the large-scale nuclear power development, the use of thorium seems to be quite natural and reasonable. The substitution of traditional uranium-plutonium fuel for uranium-thorium fuel in fast neutron reactors will significantly reduce the production of minor actinides, which will make it attractive for the transmutation of long-lived radioactive isotopes of americium, curium and neptunium that have already been and are still being accumulated. Due to the absence of uranium-233 in nature, the use of thorium in the nuclear power industry requires a closed fuel cycle. At the initial stage of developing the uranium-thorium cycle, it is proposed to use uranium-235 instead of uranium-233 as nuclear fuel. Studies have been carried out on the transmutation of minor actinides in a fast neutron reactor in which the uranium-thorium cycle is implemented. Several options for the structure of the core of such a reactor have been considered. It has been shown that heterogeneous placement of americium leads to higher rates of its transmutation than homogeneous placement does.

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Section: Calculation Studies Of the Americium Transmutation In A Fast...mentioning

confidence: 99%

Comparison of the minor actinide transmutation efficiency in models of a fast neutron uranium-thorium fueled reactor

Korobeinikov¹,

Kolesov²,

Михалев³

2022

NUCET

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“…The unique properties of 208 Pb as a promising coolant for fast reactor cores were addressed for the first time in (Shmelev et al 1993). It was shown earlier in (Khorasanov and Blokhin 2013a, 2013b, 2014a, 2014b, 2015, Khorasanov 2013, 2015 that the average neutron energy could be increased by 6 to 7% in the inner subcore of the RBETs-M fast reactor with natural circulation (Alekseev et al 2004) by substituting its standard lead-bismuth coolant for the 208 Pb enriched lead.…”

Section: Introductionmentioning

confidence: 96%

Reactor with metallic fuel and lead-208 coolant

Khorasanov

Blokhin

2019

YadEn

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The paper considers the concept of a fast lead cooled 25MW reactor for a variety of applications, including incineration of minor actinides, production of medical radioisotopes, testing of radiation-damaged nuclear technology materials, etc. A specific feature of the proposed reactor is rather a high neutron flux of 2.6•10 15 n/(cm 2 •s) at the core center, high average neutron energy of 0.95 MeV at the core center, and a large fraction (40%) of hard neutrons (E n > 0.8 MeV). The extremely high estimated reactor parameters are achieved thanks to the small core dimensions (DxH ≈ 0.50×0.42 m 2), innovative metallic fuel of the Pu-Am-Np-Zr alloy, and the 208 Pb enriched lead coolant. A relatively high probability of 241 Am fission (about 50%) is achieved in the reactor core's hard spectrum, this making it possible to incinerate up to 4 kg of 241 Am during one reactor campaign of 1000 effective days.

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Liquid metal cooling issues for fusion and fission

Horiike

Konishi

Kondo

et al. 2008

Fusion Engineering and Design

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Optimization of Conceptual Solutions for the RBETs-M Lead–Bismuth Fast Reactor

Cited by 7 publications

References 0 publications

Comparison of the minor actinide transmutation efficiency in models of a fast neutron uranium-thorium fueled reactor

Comparison of the minor actinide transmutation efficiency in models of a fast neutron uranium-thorium fueled reactor

Reactor with metallic fuel and lead-208 coolant

Liquid metal cooling issues for fusion and fission

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Optimization of Conceptual Solutions for the RBETs-M Lead–Bismuth Fast Reactor

Cited by 7 publications

References 0 publications

﻿Comparison of the minor actinide transmutation efficiency in models of a fast neutron uranium-thorium fueled reactor

﻿Comparison of the minor actinide transmutation efficiency in models of a fast neutron uranium-thorium fueled reactor

Reactor with metallic fuel and lead-208 coolant

Liquid metal cooling issues for fusion and fission

Contact Info

Product

Resources

About

Comparison of the minor actinide transmutation efficiency in models of a fast neutron uranium-thorium fueled reactor

Comparison of the minor actinide transmutation efficiency in models of a fast neutron uranium-thorium fueled reactor