Power plants – Utilizing natural heat – Geothermal
Patent
1996-08-14
1999-10-26
Nguyen, Hoang
Power plants
Utilizing natural heat
Geothermal
606415, 60655, F03G 700
Patent
active
059707143
ABSTRACT:
A geothermal power plant operating on high pressure geothermal fluid includes a primary separator for separating the geothermal fluid into two channels, one containing high pressure steam and the other containing high pressure liquid. A primary steam turbine in the high pressure steam channel is responsive to high pressure steam for generating electricity and producing heat depleted high pressure steam. A secondary separator separates the heat depleted high pressure steam into a steam component and a liquid component. A primary heat exchanger is responsive to the high pressure liquid and the steam component for transferring heat to said steam component thereby producing low pressure steam and cooled high pressure liquid. At least one power plant module includes a low pressure steam turbine responsive to the low pressure steam for producing electricity and heat depleted low pressure steam; a condenser/vaporizer containing an organic fluid for receiving the heat depleted low pressure steam and converting it into condensate, and for vaporizing the organic fluid; an organic vapor turbine responsive to vaporized organic fluid produced by the condenser/vaporizer for generating electricity and for producing heat depleted organic fluid; a condenser for condensing the heat depleted organic vapor into a liquid; a preheater for heating the liquid; a pump for returning heated liquid from the preheater to the condenser/vaporizer; and a conduit for directing condensate from the condenser to the preheater.
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New Zealand Office Action Aug. 1994.
U.S. application N. 08/099,337 Rigal, filed on Aug. 2, 1993.
Amir Nadav
Bronicki Lucien Y.
Gilon Yoel
Nguyen Hoang
Ormat Industries Ltd.
Sandler Donald M.
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