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A typical PWR has fuel assemblies of 200 to 300 rods each, and a large reactor would have about 150–250 such assemblies with 80–100 tons of uranium in all. Generally, the fuel bundles consist of fuel rods bundled 14 × 14 to 17 × 17. A PWR produces on the order of 900 to 1,600 MW e. PWR fuel bundles are about 4 meters in length. [21]
These experimental designs (all of which shared the BWR-1 classification despite their divergent designs) used fuel rod bundles in 6×6, 7×7, 8×8, 9×9, 11×11, and 12×12 configurations, but GE's 9×9 bundle later used in BWR/2–6 reactors is different from the one used in the BWR/1 era. [2]
Generally, the fuel bundles consist of fuel rods bundled 14×14 to 17×17. PWR fuel bundles are about 4 m (13 ft) long. In PWR fuel bundles, control rods are inserted through the top directly into the fuel bundle. The fuel bundles usually are enriched several percent in 235 U.
Electric Power: 1,700 MWe [3] Core Thermal Power: 4,451 MWt Reactor Fuel Assemblies: 257 Reactor Fuel: Advanced 17x17, 14 ft. Active Core Length: 4.2 meters Coolant System Loops: 4 Coolant Flow: 7.64 m 3 /s/loop Coolant Pressure: 15.5 MPa Steam Generator Type: 90TT-1 Number of Steam Generators: 4 Reactor Coolant Pump Type: 100A Number of ...
The zirconium alloy tubes are about 1 cm in diameter, and the fuel cladding gap is filled with helium gas to improve the conduction of heat from the fuel to the cladding. There are about 179-264 fuel rods per fuel bundle and about 121 to 193 fuel bundles are loaded into a reactor core. Generally, the fuel bundles consist of fuel rods bundled ...
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The fuel element or assembly is arranged in an array of cells or bundles. Each bundle consists of multiple fuel rods or pins. Each fuel rod is composed of several cylindrical fuel pellets of enriched uranium, typically as UO 2 inserted into zirconium-alloy tubes. Each reactor core can be loaded with multiple bundles of these reactor bundles.
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