The BM-40A reactor is the

nuclear fission Nuclear fission is a reaction in which the nucleus of an atom splits into two or more smaller nuclei. The fission process often produces gamma photons, and releases a very large amount of energy even by the energetic standards of radio ...

reactor used to power four of the seven boats of the Soviet Navy's Project 705 Лира (Lira or Alfa in NATO designation) fourth generation submarines. It is a

liquid metal cooled reactor A liquid metal cooled nuclear reactor, liquid metal fast reactor or LMFR is an advanced type of nuclear reactor where the primary coolant is a liquid metal. Liquid metal cooled reactors were first adapted for nuclear submarine use and have been s ...

(LMR), using highly enriched

uranium-235 Uranium-235 (235U or U-235) is an isotope of uranium making up about 0.72% of natural uranium. Unlike the predominant isotope uranium-238, it is fissile, i.e., it can sustain a nuclear chain reaction. It is the only fissile isotope that exis ...

fuel to produce 155 MWt of power. It was developed by

OKB Gidropress OKB Gidropress (russian: ОКБ Гидропресс) is a Russian state construction office which works on the design, analysis, development, and production of nuclear power plant reactors, most notably the VVER range. OKB stands for experimenta ...

in cooperation with

IPPE Institute of Physics and Power Engineering (full name: I.I. Leypunsky Institute of Physics and Power Engineering, russian: Государственный научный центр Российской Федерации Физико-энергет� ...

. ''BM-40A'' has two steam circulation loops.

External links

Project 705 Lira Alfa class
at the

Federation of American Scientists The Federation of American Scientists (FAS) is an American nonprofit global policy think tank with the stated intent of using science and scientific analysis to attempt to make the world more secure. FAS was founded in 1946 by scientists who wo ...

website.
Lead-bismuth cooled reactor plants for nuclear submarines
at the Gidropress website. Soviet naval reactors Liquid metal fast reactors {{nuclear-energy-stub

See also

External links