The OK-550 reactor is the
nuclear fission reactor used to power three 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 ...
(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 exi ...
fuel to produce
155 MWt of power.
''OK-550'' has three separate steam circulation loops, and was used in the boats built at
Severodvinsk
Severodvinsk ( rus, Северодвинск, p=sʲɪvʲɪrɐdˈvʲinsk) is a city in the north of Arkhangelsk Oblast, Russia, located in the delta of the Northern Dvina, west of Arkhangelsk, the administrative center of the oblast. As of the ...
.
The reactor was developed by
OKBM
OKBM Afrikantov (full name: OAO I. I. Afrikantov OKB Mechanical Engineering, russian: Опытное конструкторское бюро машиностроения им. И. И. Африкантова) is a nuclear engineering com ...
.
See also
*
BM-40A reactor
External links
Project 705 Lira Alfa classat the
Federation of American Scientists website.
Soviet naval reactors
Liquid metal fast reactors
{{nuclear-energy-stub