Nuclear power

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  • Created on: 21-04-11 21:36
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Nuclear Power
The reactor uses Uranium rods as fuel,
The heat is generated by nuclear fission: neutrons smash into the nucleus of the uranium
atoms, which split roughly in half and release energy in the form of heat. Nuclear fission is
a nuclear reaction in which the nucleus of an atom splits into smaller parts, often producing
free neutrons and lighter nuclei, which may eventually produce photons. This process was
discovered in December 1938 by the German nuclear chemist Otto Hahn and his assistant
Fritz Strassmann in Berlin.
Carbon dioxide gas or water is pumped through the reactor to take the heat away,
This then heats water to make steam.
The steam drives turbines which drive generators.
The generators generate electricity
In Britain, nuclear power stations are often built on the coast, and use sea water for cooling the
steam ready to be pumped round again. This means that they don't have the huge "cooling towers"
seen at other power stations.
The Chernobyl disaster was a nuclear reactor accident that occurred on 26 April 1986 at the
Chernobyl Nuclear Power Plant in Ukraine is considered to be the worst nuclear power plant

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International Nuclear Event Scale. It resulted in a
severe release of radioactivity following a massive power excursion that destroyed the reactor.
Clouds of radioactive particles were released, and the severely damaged containment vessel started
leaking radioactive matter. Most deaths from the accident were caused by radiation poisoning.
About 200,000 people needed to be evacuated and moved to other places where they could live
after the accident.…read more


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