- Industry: Government
- Number of terms: 11131
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- Company Profile:
An event or sequence of events that result in the melting of part of the fuel in the reactor core.
Industry:Energy
An expression of the likelihood that, given the way a reactor is designed and operated, an accident could cause the fuel in the reactor to be damaged.
Industry:Energy
The central portion of a nuclear reactor, which contains the fuel assemblies, moderator, neutron poisons, control rods, and support structures. The reactor core is where fission takes place.
Industry:Energy
A heat exchanger designed to aid in the cooling of water that was used to cool exhaust steam exiting the turbines of a power plant. Cooling towers transfer exhaust heat into the air instead of into a body of water.
Industry:Energy
The gradual decrease in reactor fuel rod temperature caused by the removal of heat from the reactor coolant system after the reactor has been shutdown.
Industry:Energy
A substance circulated through a nuclear reactor to remove or transfer heat. The most commonly used coolant in the United States is water. Other coolants include heavy water, air, carbon dioxide, helium, liquid sodium, and a sodium-potassium alloy.
Industry:Energy
At a nuclear facility, an area outside a restricted area but within the site boundary, to which the licensee can limit access for any reason.
Industry:Energy
The area in a nuclear power plant from which most of the plant's power production and emergency safety equipment can be operated by remote control.
Industry:Energy
A rod, plate, or tube containing a material such as hafnium, boron, etc. , used to control the power of a nuclear reactor. By absorbing neutrons, a control rod prevents the neutrons from causing further fissions.
Industry:Energy
The air-tight building, which houses a nuclear reactor and its pressurizer, reactor coolant pumps, steam generator, and other equipment or piping that might otherwise release fission products to the atmosphere in the event of an accident. Such buildings are usually made of steel-reinforced concrete.
Industry:Energy
