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Nuclear Energy

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Nuclear Energy How will it affect you? – PowerPoint PPT presentation

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Title: Nuclear Energy


1
Nuclear Energy
  • How will it
  • affect you?

2
Nuclear Energy What is it?
  • Fission
  • the splitting of an atom by a neutron, resulting
    in two or more neutrons being released and the
    formation of two new atoms.
  • Nuclear Radiation
  • the gain or loss of protons or neutrons

3
Nuclear Energy How does it work?
  • Consists of 5 main parts
  • Control Rods
  • Coolant
  • Core
  • Moderator
  • Reactor Vessel

4
Nuclear Energy How does it work?
  • Uranium atom is bombarded with neutrons,
    splitting the atom and releasing energy in the
    form of heat.
  • Two additional neutrons released will continue
    the reaction (chain reaction)
  • This energy is collected and used to produce
    steam from water, which is used to turn a turbine
    to produce electricity.

5
Nuclear Reactor
6
Nuclear Energy History
  • Successfully released in 1942, at the University
    of Chicago
  • Used to build the first atomic bomb
  • The same bomb dropped on Hiroshima

7
Nuclear Energy Where are they located?
  • Along rivers edges, sea coasts
  • Use high amounts of water to cool water being
    heated
  • U.S has 109 operating plants
  • Canada has 22 operating plants
  • France has 56 operating plants
  • Japan has 47 operating plants

8
Nuclear Energy Where does it come from?
  • Mining of Uranium that is enriched to make an
    isotope
  • 1 kg of uranium is 3,000 tons of coal 14,000
    barrels of oil

9
Nuclear Energy What is it used for?
  • Used primarily for electricity

10
Nuclear Energy Pollution
  • Three mile Island
  • 1979 Pennsylvania
  • A core meltdown because of a lack of water to
    control the amount of heat produced.

11
Nuclear Energy Pollution
  • Chernobyl
  • 1986
  • 31 fatalities, 500 hospitalized, contaminated
    crops and water, and resulted in 17,000 extra
    cancers
  • 10x the radiation then the bomb dropped on
    Hiroshima
  • Core overheated and there was an explosion of the
    lid

12
Nuclear Energy Concerns
  • Reactor will explode like an atomic bomb
  • Melt down of reactor
  • Loss of coolant
  • Possible hydrogen bubble
  • a bubble of explosive gases that may result from
    radioactive material
  • Possibility of crack in core and radiation is
    released into atmosphere

13
Nuclear Energy Cons
  • Use of nuclear power for weapons
  • takes 1000 years for materials to no longer be
    radioactive.
  • 50 of radioactive wastes are produced from
    nuclear plants
  • Where do we bury the wastes?

14
Nuclear Energy Pros
  • Increase in technology may help with burial of
    wastes.
  • Annual environmental impacts are low compared to
    other fossil fuels.
  • Fuel is long-lasting 1 kg of Uranium 3,000
    tons of coal 12,000 barrels of oil
  • Fairly clean, efficient, and clean burning.

15
Nuclear Energy Pros
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