Method and means for using a two phase fluid
First Claim
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1. A power plant comprising:
- a) a separator for separating a two-phase geothermal fluid into a vapor stream containing steam, and a liquid stream containing hot brine;
b) a steam turbine associated with a generator and responsive to said steam for driving the generator and producing power and expanded steam;
c) a steam condenser containing an organic fluid for condensing said expanded steam and producing steam condensate and vaporized organic fluid;
d) an organic vapor turbine associated with a generator for driving the generator and producing power and expanded organic vapor;
e) an organic fluid condenser for condensing said expanded organic vapor and returning the resulting condensate to said steam condenser;
f) a preheater interposed between the organic condenser and said steam condenser for preheating said resulting condensate before it is returned to said steam condenser; and
g) means for applying said steam condensate to said preheater for preheating said resulting condensate before it is returned to said steam condenser.
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Abstract
A method for using a two-phase fluid includes separating the fluid into its two phases, one of which is a hot gas containing energy in the form of latent heat, and one of which is a hot liquid containing energy in the form of sensible heat; converting sensible heat in the liquid to sensible heat in a working fluid for producing preheated working fluid; and transferring latent heat in the gas to the preheated working fluid for vaporizing the same at substantially constant temperature and pressure.
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Citations
7 Claims
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1. A power plant comprising:
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a) a separator for separating a two-phase geothermal fluid into a vapor stream containing steam, and a liquid stream containing hot brine; b) a steam turbine associated with a generator and responsive to said steam for driving the generator and producing power and expanded steam; c) a steam condenser containing an organic fluid for condensing said expanded steam and producing steam condensate and vaporized organic fluid; d) an organic vapor turbine associated with a generator for driving the generator and producing power and expanded organic vapor; e) an organic fluid condenser for condensing said expanded organic vapor and returning the resulting condensate to said steam condenser; f) a preheater interposed between the organic condenser and said steam condenser for preheating said resulting condensate before it is returned to said steam condenser; and g) means for applying said steam condensate to said preheater for preheating said resulting condensate before it is returned to said steam condenser. - View Dependent Claims (2, 3, 4)
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5. A power plant comprising:
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a) a separator for separating a two-phase geothermal fluid into a vapor stream containing steam, and a liquid stream containing hot brine; and b) a plurality of modules to which said steam is applied in parallel for generating power, each module having; 1) a steam turbine associated with a generator and responsive to applied steam for driving the generator and producing power and expanded steam; and 2) a steam condenser containing an organic fluid for condensing said expanded steam and producing steam condensate and vaporized organic fluid; 3) an organic vapor turbine associated with a generator for driving the generator and producing power and expanded organic vapor; 4) an organic fluid condenser for condensing said expanded organic vapor and returning the resulting condensate to said steam condenser; 5) a preheater interposed between the organic condenser and said steam condenser for preheating said resulting condensate before it is returned to said steam condenser; and 6) means for applying said steam condensate to said preheater for preheating said resulting condensate before it is returned to said steam condenser and for producing cooled steam condensate. - View Dependent Claims (6, 7)
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Specification