Method and apparatus for producing power from geothermal fluid

Details Method and apparatus for producing power from geothermal fluid Method and apparatus for producing power from geothermal fluid

1997-03-10

1998-09-22

Kamen, Noah P.

Power plants

Utilizing natural heat

Geothermal

60655, F03G 704

Patent

active

058097821

ABSTRACT:
A modular power plant operating from a source of geothermal fluid that produces geothermal steam containing non-condensable gases such as hydrogen sulfide, and geothermal brine, includes a steam module and an organic fluid module. The steam module has a steam turbine coupled to a generator for expanding the geothermal steam and producing electrical power, low pressure steam, and condensed steam. The organic fluid module includes a vaporizer containing an organic fluid and receiving low pressure steam slightly above atmospheric pressure from the steam module for producing vaporized organic fluid, steam condensate, and a mixture of steam and non-condensable gases, an organic vapor turbine coupled to a generator for expanding the vaporized organic fluid and producing electrical power and expanded organic fluid, a condenser for condensing the expanded organic fluid to liquid organic fluid, preheater apparatus for preheating the liquid organic fluid using heat contained in the steam condensate and producing cooled steam condensate, and a pump for supplying preheated organic fluid to the vaporizer.

REFERENCES:
patent: 4542625 (1985-09-01), Bronicki
patent: 4703722 (1987-11-01), Fukayama
patent: 4744723 (1988-05-01), Hashimoto et al.
patent: 4967559 (1990-11-01), Johnston
patent: 4996846 (1991-03-01), Bronicki
patent: 5038567 (1991-08-01), Moritz
patent: 5119635 (1992-06-01), Harel
patent: 5526646 (1996-06-01), Bronicki et al.
patent: 5531073 (1996-07-01), Bronicki et al.

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