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The majority of reactors in operation around the world are considered second generation and third generation reactor systems, as the majority of the first generation systems have been retired. China was the first country to operate a demonstration generation-IV reactor, the HTR-PM in Shidaowan, Shandong , [ 7 ] [ 8 ] which is a pebble-bed type ...
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. The reference reactor design is a helium - cooled system operating with an outlet temperature of 850 °C (1,560 °F) using a direct Brayton closed-cycle gas turbine for high ...
However, a number of proposed and one in construction new nuclear reactor designs are lead-cooled. Fuel designs being explored for this reactor scheme include fertile uranium as a metal, metal oxide or metal nitride. [2] The lead-cooled reactor design has been proposed as a generation IV reactor. Plans for future implementation of this type of ...
US Department of Energy Nuclear Energy Research Advisory Committee ... 1=Diagram extracted from Generation IV roadmap published by US Department of Energy and cleaned ...
Pool type sodium-cooled fast reactor (SFR) A sodium-cooled fast reactor is a fast neutron reactor cooled by liquid sodium.. The initials SFR in particular refer to two Generation IV reactor proposals, one based on existing liquid metal cooled reactor (LMFR) technology using mixed oxide fuel (MOX), and one based on the metal-fueled integral fast reactor.
The SCWR operates at supercritical pressure. The reactor outlet coolant is supercritical water.Light water is used as a neutron moderator and coolant. Above the critical point, steam and liquid become the same density and are indistinguishable, eliminating the need for pressurizers and steam generators (), or jet/recirculation pumps, steam separators and dryers ().
Nuclear reactor technology; Types of nuclear reactors Advanced gas-cooled reactor; Boiling water reactor; Fast breeder reactor; Fast neutron reactor; Gas-cooled fast reactor; Generation IV reactor; Integral Fast Reactor; Lead-cooled fast reactor; Liquid-metal-cooled reactor; Magnox reactor; Molten salt reactor; Pebble bed reactor; Pressurized ...
The Cu–Cl cycle is one of the prominent thermochemical cycles under development within the Generation IV International Forum (GIF). Through GIF, over a dozen countries around the world are developing the next generation of nuclear reactors for highly efficient production of both electricity and hydrogen.