NUCLEAR ENERGY

NUCLEAR ENERGY - NUCLEAR ENERGY Nuclear core of a nuclear...

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NUCLEAR ENERGY Nuclear core of a nuclear reactor must be kept cool at all times, thus water from rivers are used as a cooling system, then circulated in cooling towers until they are cool enough again to be returned back to environment The country that produces the highest percentage of its electricity from nuclear power i s France(78%), then Belgium(57%), Sweden(47%), japan(36%), UK(29%), US (20%), Canada(13%), and mostly in Ontario. Country that has the most nuclear reactors is US A) How does it work? Pressurized water reactor = most common design; fuel is U235(3% i.e slightly enriched uranium), water is the coolant and the moderator(slow down neutrons). Reactor core (nuclear reactor) contains the enriched uranium rods, moderator, and control rods (act as accelarators or brakes ;made of material that absorbs neutrons e.g boron; slowing down the reaction is done by lowering these rods, while speeding up is don’t by lifting them). Each pellet of fissionable material (U235) is capable of giving off the energy equivalent of 1 ton of coal . Water under pressure (allowing for achievement of higher temperatures) is heated with the energy of the nuclear reaction, then passed through a steam generator, which contains water not under pressure. Water in steam generator is heated up and converted to steam, which is then used to turn turbines.
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NUCLEAR ENERGY - NUCLEAR ENERGY Nuclear core of a nuclear...

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