Method of and apparatus for producing work from a source of high

Details Method of and apparatus for producing work from a source of high Method of and apparatus for producing work from a source of high

1994-07-25

1996-06-18

Husar, Stephen F.

Power plants

Utilizing natural heat

Geothermal

60655, 165 45, F03G 700

Patent

active

055266460

ABSTRACT:
Apparatus for producing from a source of geothermal fluid that contains a mixture of high pressure steam, brine and noncondensable gases includes a heat exchanger for receiving geothermal fluid and transferring heat to water thereby vaporizing the same to produce steam. At least one power plant module is involved, the module having a steam turbine responsive to steam produced by the heat exchanger for producing work, a steam condenser containing an organic fluid and responsive to low pressure steam that exits the steam turbine for condensing the steam into a liquid and vaporizing the organic fluid. The module also contains an organic vapor turbine responsive to vaporizer organic fluid for producing work, and an organic vapor condenser responsive to the low pressure organic fluid that exits the organic vapor turbine condensing the organic vapor to a liquid that is returned to the steam condenser. The cooled geothermal fluid leaving the primary heat exchanger is conducted to a rejection well. Furthermore, an additional heat exchanger also can be provided, there being a first connection associated with both heat exchangers for selectively inserting the additional heat exchanger between the heat exchanger that receives the geothermal fluid and the injection well whereby the operation of the connection means may be coordinated with the operation of the power plant module.

REFERENCES:
patent: 4057964 (1977-11-01), Hutchinson
patent: 4102133 (1978-07-01), Anderson
patent: 4776169 (1988-10-01), Coles, Jr.
patent: 4996846 (1991-03-01), Bronicki

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