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  2. Gas-cooled reactor - Wikipedia

    en.wikipedia.org/wiki/Gas-cooled_reactor

    A gas-cooled reactor (GCR) is a nuclear reactor that uses graphite as a neutron moderator and a gas (carbon dioxide or helium in extant designs) as coolant. [1] Although there are many other types of reactor cooled by gas, the terms GCR and to a lesser extent gas cooled reactor are particularly used to refer to this type of reactor.

  3. High-temperature gas-cooled reactor - Wikipedia

    en.wikipedia.org/wiki/High-temperature_gas...

    A high-temperature gas-cooled reactor (HTGR) is a type of gas-cooled nuclear reactor which uses uranium fuel and graphite moderation to produce very high reactor core output temperatures. [1] All existing HTGR reactors use helium coolant. The reactor core can be either a "prismatic block" (reminiscent of a conventional reactor core) or a ...

  4. Graphite-moderated reactor - Wikipedia

    en.wikipedia.org/wiki/Graphite-moderated_reactor

    UNGG reactor; Advanced gas-cooled reactor (AGR) Water-cooled reactors RBMK; MKER; EGP-6; Hanford N-Reactor (dual use) ADE-2 (dual use) [1] High-temperature gas-cooled reactors (past) Dragon reactor; AVR; Peach Bottom Nuclear Generating Station, Unit 1; THTR-300; Fort St. Vrain Generating Station; High temperature gas-cooled reactors (in ...

  5. The reactor in Shidao Bay, China is the world’s first gas-cooled nuclear power plant built for commercial demonstration. It is cooled by helium and can reach high temperatures of up to 750 ...

  6. Gas-cooled fast reactor - Wikipedia

    en.wikipedia.org/wiki/Gas-cooled_fast_reactor

    Gas-cooled fast reactor scheme. The gas-cooled fast reactor (GFR) system is a nuclear reactor design which is currently in development.Classed as a Generation IV reactor, it features a fast-neutron spectrum and closed fuel cycle for efficient conversion of fertile uranium and management of actinides.

  7. Advanced gas-cooled reactor - Wikipedia

    en.wikipedia.org/wiki/Advanced_Gas-cooled_Reactor

    The advanced gas-cooled reactor (AGR) is a type of nuclear reactor designed and operated in the United Kingdom. These are the second generation of British gas-cooled reactors, using graphite as the neutron moderator and carbon dioxide as coolant. They have been the backbone of the UK's nuclear power generation fleet since the 1980s.

  8. Magnox - Wikipedia

    en.wikipedia.org/wiki/Magnox

    It belongs to the wider class of gas-cooled reactors. The name comes from the magnesium - aluminium alloy (called mag nesium n on- ox idising), used to clad the fuel rods inside the reactor. Like most other generation I nuclear reactors , the magnox was designed with the dual purpose of producing electrical power and plutonium-239 for the ...

  9. Pebble-bed reactor - Wikipedia

    en.wikipedia.org/wiki/Pebble-bed_reactor

    A pebble-bed power plant combines a gas-cooled core [5] and a novel fuel packaging. [6]The uranium, thorium or plutonium nuclear fuels are in the form of a ceramic (usually oxides or carbides) contained within spherical pebbles a little smaller than the size of a tennis ball and made of pyrolytic graphite, which acts as the primary neutron moderator.