Thursday 25 April 2013

4.16 describe the energy transfers involved in generating electricity using several different methods


  • wind- the kinetic energy from the wind, turns a turbine which turns a generator which produces electrical energy
  • water- Kinetic energy from water, turns a turbine which turns a generator which produces electrical energy
  • geothermal resources- Thermal energy heats water, water turns into steam, the thermal energy of the steam turns a turbine which then has kinetic energy, the turbine turns a generator which produces electrical energy
  • solar heating systems- Light energy from the sun into thermal energy in water
  • solar cells-convert light energy from the sun into electrical energy
  • fossil fuels- Chemical energy is burnt to form heat energy, this turns into heat energy in water, this turns into kinetic energy in a turbine, this turns into electrical energy in a generator.
  • nuclear power- kinetic energy in uranium, heat energy in water, kinetic energy in turbine, electrical energy in generator.

21 comments:

  1. This comment has been removed by the author.

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    1. In solar heating systems people have pipes with water in, the sun shines on the pipes heating the water so that people can have nice warm water! Solar cells are little gadgets which have the ability to convert sunlight into electricity :)

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  2. This is slightly wrong:
    Nuclear power: Nuclear energy in uranium > Kinetic energy to turn turbines

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    1. I think we might be saying the same thing I just have put in a couple of extra steps, when uranium undergoes nuclear fission large amounts of heat are produced this is used to heat water which then turns in to steam, the steam turns the turbine which is connected to a generator and so electricity is created :)

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  3. I think Kinetic energy mostly turns the turbine and not thermal energy for the geothermal recourses one!

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  4. Thanks for this, it as really helped a LOT!

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  5. Thanks for this, it as really helped a LOT!

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  6. am i like the only one who still abuses this blog

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  7. Very appreciated. Fantastic explanations.

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  8. Nuclear one's slightly wrong.
    It's: nuclear energy - heat energy - kinetic energy - electrical energy

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  9. Explanations are good, but too short :(
    A little more description could be helpful...

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  10. Explanations are good, but too short :(
    A little more description could be helpful...

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  11. Thank you, this helped me a lot.

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