Power plants – Utilizing natural heat – With natural temperature differential
Patent
1980-03-06
1982-10-26
Ostrager, Allen M.
Power plants
Utilizing natural heat
With natural temperature differential
60398, 417108, E03G 704
Patent
active
043555136
ABSTRACT:
A method and apparatus of producing useful energy from a large body of water having cold subsurface water and water at the surface which is warmer than the subsurface water. The apparatus comprises a tubular pump to air-lift in a manner to be described cold subsurface water to the surface and which tube is open at the surface and open at the colder subsurface water and wherein a vertically adjustable air jet assembly is arranged within the tube and connected to a compressed air source to release bubbles from the air jet assembly which rise within the tube, entraining cold subsurface water, making it buoyant and cooling the surface. The method of producing useful energy includes the steps of creating an area on the warm surface of a large body of water which is colder than normal by utilizing compressed air to upwell the cold subsurface water by releasing compressed air through an air jet assembly which is vertically adjustable in a vertical conduit having an opening at the lower end and also at the upper end and which is of a length to extend to a depth within the large body of water at which cold subsurface water is located so that, when compressed air is released through the air jet assembly, it rises in the tube from a level which is most efficient entraining water and causing cold subsurface water to rise to the surface and utilizing the temperature gradient between the cooled surface of the water and the normally warmer surface of the water to generate electricity.
REFERENCES:
patent: 1508788 (1924-09-01), Halvorsen
patent: 2744065 (1956-05-01), Lacey
patent: 3028817 (1962-04-01), Cunetta
patent: 3542490 (1970-11-01), Gare
patent: 3683627 (1972-08-01), Girden
patent: 4030301 (1977-06-01), Anderson
patent: 4159427 (1979-06-01), Wiedemann
patent: 4245475 (1981-01-01), Girden
Ostrager Allen M.
Saccocio Richard M.
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