Method and apparatus for conversion of heat to electrical energy using a new thermodynamic cycle
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United States of America Patent
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Jan 1, 2013
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Dec 29, 2011
app pub date -
Sep 7, 2011
filing date -
May 14, 2009
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Abstract
A method for converting heat to electricity is described. The method can be used to efficiently and economically generate electricity from thermal energy directly through ferroelectric or other polarizable materials without the need for first converting thermal energy to mechanical energy or to any other form of energy or work. The method can involve subjecting a polarizable material to a thermodynamic cycle having two isothermal steps and two steps that occur at constant polarization. In an ideal implementation, this thermodynamic cycle allows the conversion of heat to electricity at the ultimate Carnot limit. The ferroelectric material can be continuously cycled in and out of its ferroelectric phase while heat is continuously converted to electricity at high voltage. The electrical energy so generated can be used in a virtually unlimited range of different applications or be stored for later use. An apparatus for converting heat to electricity is also described.
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