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  2. Nuclear reactor core - Wikipedia

    en.wikipedia.org/wiki/Nuclear_reactor_core

    See the Soviet-made RBMK nuclear-power reactor. This was the type of reactor involved in the Chernobyl disaster. In the Advanced Gas-cooled Reactor, a British design, the core is made of a graphite neutron moderator where the fuel assemblies are located. Carbon dioxide gas acts as a coolant and it circulates through the core, removing heat.

  3. RBMK - Wikipedia

    en.wikipedia.org/wiki/RBMK

    The blocks are stacked, surrounded by the reactor vessel into a cylindrical core with a diameter and height of 14 m × 8 m. [15] The maximum allowed temperature of the graphite is up to 730 °C. [16] The reactor has an active core region 11.8 m in diameter by 7 m height. There are 1700 tons of graphite blocks in an RBMK-1000 reactor. [14]

  4. Containment building - Wikipedia

    en.wikipedia.org/wiki/Containment_building

    A containment building is a reinforced steel, concrete or lead structure enclosing a nuclear reactor. It is designed, in any emergency, to contain the escape of radioactive steam or gas to a maximum pressure in the range of 275 to 550 kPa (40 to 80 psi).

  5. Control rod - Wikipedia

    en.wikipedia.org/wiki/Control_rod

    A new reactor is assembled with its control rods fully inserted. Control rods are partially removed from the core to allow the nuclear chain reaction to start up and increase to the desired power level. Neutron flux can be measured, and is roughly proportional to reaction rate and power level. To increase power output, some control rods are ...

  6. Reactor pressure vessel - Wikipedia

    en.wikipedia.org/wiki/Reactor_pressure_vessel

    Liquid metal cooled reactor - utilizes a liquid metal, such as sodium or a lead-bismuth alloy to cool the reactor core. Molten salt reactor - salts, typically fluorides of the alkali metals and of the alkali earth metals, are used as the coolant. Operation is similar to metal-cooled reactors with high temperatures and low pressures, reducing ...

  7. Nuclear reactor - Wikipedia

    en.wikipedia.org/wiki/Nuclear_reactor

    A fission fragment reactor is a nuclear reactor that generates electricity by decelerating an ion beam of fission byproducts instead of using nuclear reactions to generate heat. By doing so, it bypasses the Carnot cycle and can achieve efficiencies of up to 90% instead of 40–45% attainable by efficient turbine-driven thermal reactors.

  8. One of Plant Vogtle’s new $30 billion nuclear reactors is ...

    www.aol.com/one-plant-vogtle-30-billion...

    A: So the reactor is fueled, the reactor is closed, bolted shut. Control rods are slowly being pulled out. The control rods absorb neutrons without undergoing any nuclear reactions.

  9. Magnox - Wikipedia

    en.wikipedia.org/wiki/Magnox

    The heat exchanger is outside the concrete radiation shielding. This represents an early Magnox design with a cylindrical, steel, pressure vessel. Magnox is a type of nuclear power / production reactor that was designed to run on natural uranium with graphite as the moderator and carbon dioxide gas as the heat exchange coolant.