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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.
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 ...
Hinkley Point B nuclear power station was a nuclear power station near Bridgwater, Somerset, on the Bristol Channel coast of south west England. It was the first commercial Advanced Gas Cooled reactor to generate power to the National Grid in 1976 and shares its design with sister station Hunterston B nuclear power station. It ceased operations ...
The station is of the advanced gas-cooled reactor (AGR) type. It provides electricity for over 3% of the UK using two 1,575 MWth advanced gas-cooled reactors to power two generators (590 MW e + 595 MW e), giving a maximum generating capacity of 1,320 MW. [4] [2] [3] The station's designed net electrical output is 1,185 MW.
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 ...
Detailed designs for pressurized and boiling water reactors, as well as gas-cooled and liquid-metal cooled reactors. First nuclear power plant with a containment structure (SM-1) First use of stainless steel for fuel element cladding (SM-1) First nuclear power plant in the US to supply electrical power to a commercial grid (SM-1)
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.
On the site two separate nuclear power stations, Heysham 1 and Heysham 2 operate independently, only with joint entry protocol, both with two reactors of the advanced gas-cooled reactor (AGR) type. In 2010, the British government announced that Heysham was one of the eight sites it considered suitable for future nuclear power stations. [6]