Ocean thermal energy conversion system

Prime-mover dynamo plants – Miscellaneous – Drive gearing

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60646, 60657, 606417, 203 4, 203 7, 203 11, 203 88, 203DIG20, B01D 306, F03G 704, F01K 2106

Patent

active

043026826

ABSTRACT:
A power generation system and method of operation for generating electricity by utilizing temperature differences inherently present in the ocean between water near the surface and water from the ocean's depths. A pump provides relatively warm, surface ocean water to a flash evaporator where a portion of the water is flashed into steam. The steam is expanded through a subatmospheric pressure range turbine which exhausts into a condensing enclosure. The steam exhausting into the enclosure is condensed by relatively cold ocean water pumped thereinto. The turbine drives a generator and thus produces the electricity. The turbine speed and generator output are controlled by selectively introducing atmospheric air and relatively warm water into the exhausted motive steam flow. Such selective introduction into the exhausted steam flow of air and/or relatively warm water increases the absolute pressure at the turbine's exhaust end and thus reduces steam flow through the turbine. Adjusting regulating valves for the air and warm water flows in response to changes in turbine speed and/or generator load provides means for regulating the speed of the turbine and generating load.

REFERENCES:
patent: 29667 (1978-06-01), Harner
patent: 2006985 (1935-07-01), Claude et al.
patent: 2977292 (1961-03-01), Ellsworth
patent: 3076096 (1963-01-01), Bachmann
patent: 3638428 (1972-02-01), Shipley et al.
Weissberger, Ed.; Techniques of Organic Chemistry; vol. IV; 1965; p. 761.

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