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Low grade to high grade energy?

  1. Mar 4, 2015 #1
    Any possibilities of converting energy from low grade to high grade in the foreseen future?
  2. jcsd
  3. Mar 4, 2015 #2


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    Science Advisor

    Concentrated solar, gasification, ORC, thermoelectrics are some common examples. Wood to charcoal has been around for a loooong time.
  4. Mar 4, 2015 #3


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    Staff: Mentor

    Yes, there are lots of ways -- but all obey the laws of thermodynamics. So you end up with less high grade energy than you had in low grade energy. For example:
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