MKER

The MKER (: Mnogopetlevoy Kanalynyi Energeticheskiy Reaktor, translation: multi-loop pressure tube power reactor) is a Russian third generation nuclear reactor design. It was a development of the RBMK nuclear power reactor. No reactor of the MKER-800 type (and presumably other types) will continue to be developed, as ROSATOM have shelved the design.

== Operation == The MKER is a pressure tube reactor with modern safety features including a containment building and passive nuclear safety systems. Fuel can be changed while the reactor is in operation (online refueling), improving grid and fuel efficiency. Vertical injectors promote a natural convective flow of the light water primary circuit fluid through inlined channels in the reactor core. Graphite blocks in the reactor core serve as a neutron moderator.