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The plant was known as the Feed Materials Production Center since the uranium fuel cores it produced were the 'feed' for the AEC's plutonium production reactors. [5] These nuclear reactors were located at Oak Ridge, Tennessee, the Savannah River Site in South Carolina and at Hanford in the state of Washington.
In March 2002, plant staff discovered that the borated water that serves as the reactor coolant had leaked from cracked control rod drive mechanisms directly above the reactor and eaten through more than six inches [23] (150 mm) of the carbon steel reactor pressure vessel head over an area roughly the size of a football (see photo).
Control rod assembly for a pressurized water reactor, above fuel element Control rods are used in nuclear reactors to control the rate of fission of the nuclear fuel – uranium or plutonium . Their compositions include chemical elements such as boron , cadmium , silver , hafnium , or indium , that are capable of absorbing many neutrons without ...
This is a list of electricity-generating power stations in the U.S. state of Ohio, sorted by type and name. In 2022, Ohio had a total summer capacity of 27,447 MW and a net generation of 135,810 GWh. [ 2 ]
Inside the core of a typical pressurized water reactor or boiling water reactor are fuel rods with a diameter of a large gel-type ink pen, each about 4 m long, which are grouped by the hundreds in bundles called "fuel assemblies". Inside each fuel rod, pellets of uranium, or more commonly uranium oxide, are stacked end to end.
The metal used for the tubes depends on the design of the reactor. Stainless steel was used in the past, but most reactors now use a zirconium alloy which, in addition to being highly corrosion-resistant, has low neutron absorption. The tubes containing the fuel pellets are sealed: these tubes are called fuel rods. The finished fuel rods are ...
They are typically 40 or more feet (12 m) deep, with the bottom 14 feet (4.3 m) equipped with storage racks designed to hold fuel assemblies removed from reactors. A reactor's local pool is specially designed for the reactor in which the fuel was used and is situated at the reactor site. Such pools are used for short-term cooling of the fuel rods.
In 1994, the core was replaced with an S6W reactor, designed for the then-new Seawolf-class submarine. The prototype is equipped with an automatic reactor fill system that can flood the reactor with borated water in the event of a loss-of-coolant accident. The S8G reactor is in use in Ohio Class Submarines and has a power rating of 26.1 MW. [5]