How is fuel prepared for use in a nuclear reactor?
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How is fuel prepared for use in a nuclear reactor?
To prepare uranium for use in a nuclear reactor, it undergoes the steps of mining and milling, conversion, enrichment and fuel fabrication. These steps make up the ‘front end’ of the nuclear fuel cycle. Collectively these steps are known as the ‘back end’ of the fuel cycle.
How is spent fuel transported?
From the reactor site, used fuel is transported by road, rail, or sea to either an interim storage site or a reprocessing plant. Used fuel assemblies are shipped in Type B casks which are shielded with steel, or a combination of steel and lead.
Why is spent nuclear fuel not reprocessed in the United States?
The reprocessing of spent nuclear fuel allows more energy to be gained from the same amount of fissile material, produces less waste, and causes the waste that is generated to be less radioactive than when spent fuel is stored without being reprocessed.
Which fuel is used in nuclear reactor?
Uranium
Uranium is the most widely used fuel by nuclear power plants for nuclear fission. Nuclear power plants use a certain type of uranium—U-235—as fuel because its atoms are easily split apart. Although uranium is about 100 times more common than silver, U-235 is relatively rare at just over 0.7\% of natural uranium.
What happens to spent nuclear rods?
When fuel rods in a nuclear reactor are “spent,” or no longer usable, they are removed from the reactor core and replaced with fresh fuel rods. The fuel assemblies, which consist of dozens to hundreds of fuel rods each, are moved to pools of water to cool.
Can nuclear fuel be used for transportation?
However, nuclear energy is not in a form easily used in transportation. Nuclear heat may be used to crack water into hydrogen and oxygen to provide feedstocks for chemical and synthetic fuel industries. Liquid hydrogen may become the fuel for large, long-range air transport.