Power plants – Utilizing natural heat – Geothermal
Patent
1995-10-19
1997-11-18
Lazarus, Ira S.
Power plants
Utilizing natural heat
Geothermal
210747, 210170, F03G 700
Patent
active
056875690
ABSTRACT:
Applicant's preferred embodiment utilizes municipal waste water effluent to replenish a depleted geothermal field. Condensate produced by expanding steam produced in the geothermal field through a steam turbine generator is pooled with cooked water collected from the field, and then directed through a penstock from a higher elevation to a lower elevation where further energy is extracted through a traditional hydroelectric generator. The cooked water and condensate may be treated to produce potable water and/or distributed for public consumption either before or after it is directed to the hydroelectric turbine generator. The effluent is pumped Up to the geothermal field during off-peak periods of electric consumption, and hydroelectric power generation is accomplished during periods of peak electric demand. A fraction of the effluent may be used as cooling water for the steam turbine and its associated condenser before injection into the geothermal field.
REFERENCES:
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patent: 4052858 (1977-10-01), Jeppson
patent: 4443707 (1984-04-01), Scieri et al.
patent: 4542625 (1985-09-01), Bronicki
patent: 5400598 (1995-03-01), Moritz et al.
patent: 5484231 (1996-01-01), Cannan et al.
Lam Nhat-Hang H.
Lazarus Ira S.
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