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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 ...
City of Hamilton [21] Auglaize Hydroelectric Plant: Bryan: 4.5: City of Bryan [21] Captain Anthony Meldahl Locks and Dam: Felicity: 105: American Municipal Power [21] Largest hydroelectric plant on the Ohio River. Located on the Kentucky side of the river. The City of Hamilton retains 51.4% of the power generation. [22] Greenup Lock and Dam ...
The Perry Nuclear Power Plant is located on a 1,100 acres (450 ha) site on Lake Erie, 40 miles (64 km) northeast of Cleveland in North Perry, Ohio, US. The nuclear power plant is owned and operated by Vistra Corporation. The reactor is a General Electric BWR-6 boiling water reactor design, with a Mark III containment design. The original core ...
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.
Its single Combustion Engineering pressurized water reactor weighs 425 tons and has steel walls 8 + 1 ⁄ 2 inches (220 mm) thick. The containment building is 116 feet (35 m) in diameter and 189 feet (58 m) tall, including the dome. Its concrete walls are 3 + 1 ⁄ 2 feet (1.1 m) thick with a 1 ⁄ 4-inch-thick (6.4 mm) steel liner plate. The ...
Fermi 2 is a 1,202 MWe General Electric boiling water reactor owned and operated by DTE Energy. Plans to build were announced in July 1968. Initial criticality was achieved in July 1985, and full commercial operation commenced on January 23, 1988. [5] The reactor vessel holds 764 fuel assemblies and 185 control rods which modulate the power.
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 ...