Izvestiya vuzov. Yadernaya Energetika

The peer-reviewed scientific and technology journal. ISSN: 0204-3327

The Design of the BN-1200M Reactor Plant for Implementation as Part of Power Unit No.5 at the Beloyarsk Nuclear Power Plant

9/10/2025 2025 - #03 Current issues in nuclear energy

Vasiaev A.V. Kerekesha A.V. Kryukov A.N. Marova E.V. Nosov Yu.V. Rogozhkin S.A. Sidorov I.I. Smelov A.Y. Shepelev S.F.

DOI: https://doi.org/10.26583/npe.2025.3.02

UDC: 621.039.52

The goal is to present the state of development and justification of the design of a new 4th generation commercial power unit with BN-1200M reactor at the Beloyarsk NPP site for the implementation of a two-component nuclear power system with a closed nuclear fuel cycle based on new generation fast reactors.

The project BN-1200M use reference technical solutions that have shown themselves well during the operation of power units BN-600 and BN-800, and new technical solutions for equipment and systems of the reactor plant. For new technical solutions, a calculated and experimental justification of the core is carried out in terms of the performance of mixed uranium-plutonium fuel, the design of the components and its characteristics, the emergency heat removal system and its elements, main circulation pumps, cold traps, a two-module hull steam generator, as well as operational safety, new structural materials, etc.

The technical design of the fast neutron reactor plant with sodium coolant BN-1200M was developed, the competitiveness of the project in relation to promising energy sources was substantiated, the materials of the power unit design were developed, a license was obtained to place the power unit at the Beloyarsk NPP site. R&D results made it possible to justify new technical solutions, increase the level of safety, reliability and efficiency in relation to predecessor projects and promising energy sources.

The work performed made it possible to ensure the readiness for commercial development of the power unit project with a reactor plant BN-1200M high power in a two-component nuclear power system.

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BN-1200M BN-1200 fast neutron reactor with sodium coolant nuclear fuel cycle closure competitiveness sodium coolant research and development (R&D) substantiation of technical solutions reactor technology reactor plant (RP) project status BN-1200M power unit BN-800 BN-600

Link for citing the article: Vasiaev A.V., Kerekesha A.V., Kryukov A.N., Marova E.V., Nosov Yu.V., Rogozhkin S.A., Sidorov I.I., Smelov A.Y., Shepelev S.F. The Design of the BN-1200M Reactor Plant for Implementation as Part of Power Unit No.5 at the Beloyarsk Nuclear Power Plant. Izvestiya vuzov. Yadernaya Energetika. 2025, no. 3, pp. 28-44; DOI: https://doi.org/10.26583/npe.2025.3.02 (in Russian).

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