Sentences with phrase «cool nuclear fuel rods»
Critics question the announcement, but a cold shutdown is when water used to cool nuclear fuel rods remains below boiling point, preventing the fuel from reheating
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If the pool leaks or the cooling system breaks, as happened in Japan, the nuclear fuel rods could become exposed and release radioactive gas.
Leaks, burst cooling pipes, faulty controls, misplaced fuel rods and engineers» warnings about design flaws have done little to slow down approvals for continued operation of the nation's aging nuclear plants
The pools — water - filled basins that store and cool used radioactive fuel rods — are so densely packed with nuclear waste that a fire could release enough radioactive material to contaminate an area twice the size of New Jersey.
That hydrogen buildup was the result of hot steam coming into contact with overheated nuclear fuel rods covered by a cladding of zirconium alloy, or «zircaloy» — the material used as fuel - rod cladding in all water - cooled nuclear reactors, which constitute more than 90 percent of the world's power reactors.