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NUCLEAR FISSION

NUCLEAR FISSION. Process when he nuclei of uranium atoms are bombarded with neutrons. These collisions caused the nuclei to split. Fission reaction. Things to know. Done in Nuclear Power Plants Element used to spilt the atoms If allowed to continue the chain reaction more quickly

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NUCLEAR FISSION

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  1. NUCLEAR FISSION Process when he nuclei of uranium atoms are bombarded with neutrons. These collisions caused the nuclei to split.

  2. Fission reaction

  3. Things to know • Done in Nuclear Power Plants • Element used to spilt the atoms • If allowed to continue the chain reaction more quickly • Provides ¾ of the electricty in our country.

  4. The Fission Reactor Blue arrow- fuel rod transportation canister Red arrow- the pit where the reactor core would normally reside

  5. From Fission to Electricity • nuclear power plant produces electricity in almost exactly the same way that a conventional power plant does. A conventional power plant burns fuel to create heat. The fuel is generally coal, but oil is also sometimes used. The heat is used to raise the temperature of water, causing it to boil. The high temperature and intense pressure steam that results from the boiling of the water turns a turbine, which then generates electricity. • A nuclear power plant works the same way, except that the heat used to boil the water is produced by a nuclear fission reaction using 235U as fuel(uranium), not the combustion of fossil fuels. A nuclear power plant uses much less fuel than a comparable fossil fuel plant. • A rough estimate is that it takes 17,000 kilograms of coal to produce the same amount of electricity as 1 kilogram of nuclear uranium fuel.

  6. Advantages • Concentrated enery source. • Doesn’t produce green house gases. • Releases less radioactivity than coal power plants.

  7. Disadvantages • Finding a safe place to store nuclear waste. • Storage sites should be stabled for tens-thousands of years. • If not controlled, explosions

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