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U.S. Department of Energy
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Geothermal energy control system and method

Patent ·
OSTI ID:862463
A geothermal energy transfer and utilization system makes use of thermal energy stored in hot solute-bearing well water to generate super-heated steam from an injected flow of clean water; the super-heated steam is then used for operating a turbine-driven pump at the well bottom for pumping the hot solute-bearing water at high pressure and in liquid state to the earth's surface, where it is used by transfer of its heat to a closed-loop boiler-turbine-alternator combination for the generation of electrical or other power. Residual concentrated solute-bearing water is pumped back into the earth. The clean cooled water is regenerated at the surface-located system and is returned to the deep well pumping system also for lubrication of a novel bearing arrangement supporting the turbine-driven pump system.
Research Organization:
Sperry Research Center, Sudbury, Mass. (USA)
Assignee:
Sperry Rand Corporation (New York, NY)
Patent Number(s):
US 3938334
OSTI ID:
862463
Country of Publication:
United States
Language:
English