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Power augmentation of a gas turbine by inlet air chilling

  • US 5,321,944 A
  • Filed: 06/28/1993
  • Issued: 06/21/1994
  • Est. Priority Date: 01/08/1992
  • Status: Expired due to Term
First Claim
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1. Apparatus for augmenting power produced by a gas turbine system of the type having an air compressor for producing compressed air, a combustor for heating the compressed air to produce hot gases, a gas turbine responsive to said hot gases for driving said air compressor and a load, and for producing exhaust gases, said apparatus comprising:

  • a) means for cooling air supplied to the compressor;

    b) said means for cooling comprising;

    (1) an indirect contact heat exchanger through which air is supplied to said compressor;

    (2) a closed reservoir containing water;

    (3) means for exchanging water between said reservoir and said heat exchanger;

    (4) an auxiliary compressor having an inlet connected to said reservoir, and having an outlet;

    (5) drive means for operating said auxiliary compressor to reduce the pressure in said reservoir thereby producing water vapor which reduces the temperature of the water remaining in the reservoir, said water vapor being compressed by the operation of said auxiliary compressor to produce heated, compressed water vapor at said outlet;

    (6) a condenser connected to said outlet for condensing said heated compressed water vapor; and

    (7) means connecting said condenser to said reservoir for returning the condensed water vapor produced by said condenser to said reservoir.

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