Define nuclear energy, fission, radiation, and nuclear waste<br />Identify the most common nuclear fuels<br />Describe the 2 major nuclear power accidents in history<br />Objectives<br />
Nuclear Energy: energy contained in the nucleus of an atom<br />Nuclear energy comes from unstable particles like uranium or plutonium<br />Fission: atoms being split apart to gain their energy<br />“Fission is Division”<br />Radiation: dangerous rays produced by splitting atoms<br />Where does nuclear energy come from?<br />
Nuclear reactions give off a large amount of heat<br />The heat turns water into steam<br />Steam turns turbines to produce electricity<br />Materials that are used for nuclear reactions decay from the uranium or plutonium to produce nuclear waste<br />How does it make electricity?<br />
The US gets 19% of its electrical power from nuclear power<br />The world uses 366 GW of power from nuclear energy<br />1 Gigawatt (GW) equal 1,000 Megawatts (MW)<br />The state of PA gets 9,195 MW of power from nuclear energy<br />How much power can we get?<br />
There have only been 2 accidents worldwide with nuclear power<br />Three Mile Island, Dauphin County, PA<br />Chernobyl, Pripyat, Ukraine<br />Accidents with Nuclear Power<br />
A valve that contained water with uranium in it was stuck open<br />Allowed large amounts of uranium out of the nuclear power plant<br />Resulted in evacuations and new regulations for nuclear power plants to follow<br />What happened at 3 Mile Island?<br />
A loss of power in one of the reactors caused 2 explosions: a steam explosion and a hydrogen gas explosion<br />Nuclear particles were thrown all over and the entire surrounding area had to be evacuated<br />56 people died as a result of the accident<br />What happened at Chernobyl?<br />
Disadvantages<br />Nuclear energy has only resulted in 2 major accidents worldwide<br />Nuclear materials (uranium, plutonium) are non-renewable resources<br />The only way to use nuclear materials is by using fossil fuels<br />Advantages<br />It is only responsible for a fraction of the deaths as compared to coal mining<br />Nuclear energy does not pollute the air<br />Large amount of energy from small amounts of materials<br />Advantages and Disadvantages<br />
Some people believe that nuclear power will replace power from fossil fuels<br />The US government receives more and more applications for building nuclear power plants each year<br />Challenge will be to store used fuel<br />Proposed to store all waste at Yucca Mountain in Nevada<br />Future of Nuclear Power<br />
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