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Fuel assembly
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Energy
> Fuel
AFA 3GL fuel assembly |
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 Wall paper :800*600 or 1024*768 |
More than a kilometer of tubes!
The reactor core is made up of fuel assemblies. Each fuel assembly consists of a square bundle of 264 "rods" or leaktight tubes measuring about 4 meters long, sealed at both ends and containing uranium oxide pellets.
A 1300 MWe reactor contains 193 assemblies, i.e. 104 tons uranium divided up between 16 million pellets in 51,000 rods!
The zirconium-alloy rod cladding is the first of the three levels of containment which protect from radiation leaks.
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WBCSD - ARESE
