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Heat to current conversion efficiency

  1. Aug 5, 2011 #1
    Does anybody have any numbers for this new discovery?
    http://web.mit.edu/newsoffice/2011/sun-free-photovoltaics-0728.html

    How much of the heat is converted into electricity by a standard thermoelectric power plant?
    And how much of the heat is converted into electricity by this new device?
     
    Last edited by a moderator: Apr 26, 2017
  2. jcsd
  3. Aug 5, 2011 #2

    Pythagorean

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    Gold Member

    Abstract
    David Chester, Peter Bermel, John D. Joannopoulos, Marin Soljacic, and Ivan Celanovic, "Design and global optimization of high-efficiency solar thermal systems with tungsten cermets," Opt. Express 19, A245-A257 (2011)
     
  4. Aug 5, 2011 #3
    Thanks for the "new"; what aboud the "old"? Which is the efficiency of turning heat into steam into rotation into electricity?
     
  5. Aug 5, 2011 #4

    Pythagorean

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    not sure, you may have more luck with that question in mechanical/electrical engineering forums. I don't like numbers :P
     
  6. Aug 5, 2011 #5

    Drakkith

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    Staff: Mentor

    I believe the conversion of heat to electricity via a heat engine is about 50%-60% at max using combined cycle plants.
     
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