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Advanced power recovery and energy conversion systems and methods of using same

  • US 7,827,791 B2
  • Filed: 10/05/2005
  • Issued: 11/09/2010
  • Est. Priority Date: 10/05/2005
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a first heat exchanger adapted to receive a heating stream from a heat source and a first portion of the working fluid other than water, wherein, when the first portion of the working fluid is passed through the first heat exchanger, and converted to a vapor via heat transfer from the heat contained in said heating stream from said heat source;

    at least one turbine adapted to receive said vapor and produce rotational, mechanical power to a shaft that is adapted to transmit said power to at least one device adapted to receive said power;

    a direct contact desuperheater heat exchanger adapted to receive said exhaust vapor from said at least one turbine and a second portion of said working fluid, wherein the temperature of the second portion of said working fluid is adapted to be increased via heat transfer with said exhaust vapor from said at least one turbine while the temperature of said exhaust vapor from said at least one turbine is reduced in said direct contact desuperheater heat exchanger;

    a condenser heat exchanger that is adapted to receive said exhaust vapor from said direct contact desuperheater heat exchanger and a cooling fluid, wherein a temperature of said exhaust vapor from said direct contact desuperheater heat exchanger is reduced via heat transfer with said cooling fluid;

    a liquid accumulator that is adapted to receive said cooled working fluid, provide storage for said cooled working fluid, and provide a surge volume for said system;

    at least one pump that is adapted to circulate said working fluid to said first heat exchanger;

    a flow splitter that is adapted to divide the working fluid from said at least one pump into at least said first and second portions, wherein said first portion is supplied to said first heat exchanger and said second portion is supplied to said desuperheater heat exchanger; and

    ,a flow regulating valve adapted to receive said second portion of said working fluid and regulate the flow of and reduce the pressure of said second portion of said working fluid before supplying said second portion of said working fluid to said desuperheater heat exchanger.

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