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Efficient conversion of heat to useful energy

  • US 7,516,619 B2
  • Filed: 07/14/2005
  • Issued: 04/14/2009
  • Est. Priority Date: 07/19/2004
  • Status: Active Grant
First Claim
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1. A heat transfer system for converting heat into energy, comprising:

  • a power sub-system communicatively coupled to a heat source stream, said power sub-system comprising;

    a first heat exchanger adapted to heat a multi-component working stream with heat from said heat source stream thereby producing a heated working stream;

    a turbine adapted to expand said heated working stream thereby producing a spent stream;

    a stream splitter adapted to split a partially heated working stream into a first substream and a second substream prior to being heated in said first heat exchanger, anda second heat exchanger adapted to heat said first substream with heat from said spent stream thereby producing a cooled spent stream having a first set of thermodynamic characteristics;

    a distillation condensation sub-system adapted to receive said cooled spent stream having substantially the same thermodynamic characteristics as said first set of thermodynamic characteristics, thereby producing a condensed working stream; and

    a residual heat exchanger adapted to heat said condensed working stream with heat from a low temperature tail of said heat source stream thereby producing said partially heated working stream.

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