BN-1200 reactor

The BN-1200 reactor is a 1200 MW sodium-cooled fastbreeder reactor project, under development by OKBMAfrikantov in Zarechny and the design was originallyplanned to be complete by 2017. In 2015 Rosenergoatompostponed construction “indefinitely” to allow fuel designto be improved after more experience of operating theBN-800 reactor, and amongst cost concerns.[1]

Goals are enhanced safety (IV generation) and a breed-ing ratio of 1.2 to 1.3–1.35 for mixed uranium-plutoniumoxide fuel and 1.45 for nitride fuel. Based on the BN-600 reactor, the core would use greater size fuel elementsand require a simplified refueling procedure compared toBN-600 and BN-800 reactor. Boron carbide would beused for in-reactor shielding. Thermal power should benominal 2900MW ed electric output 1220MW. Primarycoolant temperature at the intermediate heat exchangeris 550 °C and at the steam generator 527 °C. Gross effi-ciency is expected to be 42%, net 39%. Safety enhance-ments are the elimination of outer primary circuit sodiumpipelines and a passive emergency heat removal. Pro-jected unit service life is 60 years. OKBM expects tocommission the first unit with MOX fuel in 2020, theneight more to 2030. SPb AEP also claims design involve-ment. It is intended to be a Generation IV design and pro-duce electricity at RUR 0.65/kWh (US 2.23 cents/kWh),and Rosenergoatom is ready to involve foreign specialistsin its design, with India and China particularly mentioned.Rosatom's Science and Technology Council has approvedthe BN-1200 reactor for Beloyarsk, possibly to be opera-tional about 2020. Early in 2012 Rosatom said two suchunits would be built there, either BN-1200 or BN-1600,along with possibly a BREST-300 unit.In June 2012, the construction of the first BN-1200 hadbeen approved by the Sverdlovsk region government, atthe Beloyarsk nuclear power plant. The technical designof the BN-1200 is scheduled for completion by 2013,while the manufacture of equipment will start in 2014.Construction of the Beloyarsk unit was set to begin in2015.[2]

The World Nuclear Association lists the BN-1200 as acommercial reactor, in contrast to its predecessors.[3]

1 See also• BN-350 reactor• BN-600 reactor• BN-800 reactor

• Generation IV reactor

2 References[1] “Russia postpones BN-1200 in order to improve fuel de-

sign”. World Nuclear News. 16 April 2015. Retrieved 19April 2015.

[2] Large fast reactor approved for Beloyarsk

[3] http://www.world-nuclear.org/info/Current-and-Future-Generation/Fast-Neutron-Reactors/#tablestyle

• The information in this article is based on that in itsGerman equivalent.

3 External links• Official website

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