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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 ...
File:Very High Temperature Reactor.svg. Add languages. ... 1=Diagram extracted from Generation IV roadmap and cleaned up to remove excess grouping. This is the ...
Sketch of a pebble-bed reactor. The pebble-bed reactor (PBR) is a design for a graphite-moderated, gas-cooled nuclear reactor. It is a type of very-high-temperature reactor (VHTR), one of the six classes of nuclear reactors in the Generation IV initiative. Graphite pebble for reactor. The basic design features spherical fuel elements called ...
Huaneng Shidao Bay High-Temperature Gas-Cooled Reactor Demonstration Project officially commenced commercial operation in Rongcheng, #Shandong, on Dec 6, which is the world's first fourth ...
Advanced Gas-cooled Reactor (Magnox successor, 15 built, 1962-today) Heavy water gas cooled reactor (heavy water moderated, CO 2 cooled) Brennilis Nuclear Power Plant (1967-1985) KS 150 (1972-1979) Niederaichbach Nuclear Power Plant (1973-1974) High & Very-high temperature reactor (graphite moderated, Helium cooled) Prismatic block reactor ...
The reactor buildings of Bradwell magnox nuclear power station. The magnox reactors were considered at the time to have a considerable degree of inherent safety because of their simple design, low power density, and gas coolant. Because of this they were not provided with secondary containment features. A safety design principle at the time was ...
The GFR base design is a fast reactor, but in other ways similar to a high temperature gas-cooled reactor. It differs from the HTGR design in that the core has a higher fissile fuel content as well as a non-fissile, fertile, breeding component. There is no neutron moderator, as the chain reaction is sustained by fast neutrons. Due to the higher ...
The gas-cooled fast reactor (GFR) [27] features a fast-neutron spectrum and closed fuel cycle. The reactor is helium-cooled. Its outlet temperature is 850 °C. It moves the very-high-temperature reactor (VHTR) to a more sustainable fuel cycle. It uses a direct Brayton cycle gas turbine for high thermal efficiency.