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Thread: Direct conversion of heat to electricity

  1. #1 Direct conversion of heat to electricity 
    Forum Freshman Piemaster's Avatar
    Join Date
    Apr 2013
    West Lafayette, IN
    Hello, I was reading about a new material developed by the University of Minnesota: New energy technology based on the direct conversion of heat to electricity using multiferroic alloys | Institue on the Environment | University of Minnesota

    "This new allow has a phase change, but not like melting or boiling. When the temperature hits a certain point, it becomes a strong magnet, then when the temperature drops, it stops being a magnet.
    At 125C the magnetization is 10 emu/cm3. But at just less than 150C the magnetization is 1200 emu/cm3. This massive change can be used to induce electricity in a coil of copper wire. The sample used in the experiments resulted in a change from 0.6 mV to -0.6mV"

    So is this a big deal? Should we be investing in this technology? Could we cover our deserts in clear plastic, with grids of this alloy under it?

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  3. #2  
    Forum Masters Degree
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    Feb 2013
    It would be great if practically possible

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  4. #3  
    Cooking Something Good MacGyver1968's Avatar
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    Aug 2006
    Dallas, Texas
    If the material is practical...I could see several good uses for it. Like in the making of regenative brakes for electric and hybrid cars.
    Fixin' shit that ain't broke.
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  5. #4  
    Join Date
    Apr 2007
    I didn't see where anybody actually generated any electricity from it yet, so it's probably too early to get excited about.
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