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U.S. Department of Energy
Office of Scientific and Technical Information

Geothermal pump down-hole energy regeneration system

Patent ·
OSTI ID:864281
Geothermal deep well energy extraction apparatus is provided of the general kind in which solute-bearing hot water is pumped to the earth's surface from a subterranean location by utilizing thermal energy extracted from the hot water for operating a turbine motor for driving an electrical power generator at the earth 3 s surface, the solute bearing water being returned into the earth by a reinjection well. Efficiency of operation of the total system is increased by an arrangement of coaxial conduits for greatly reducing the flow of heat from the rising brine into the rising exhaust of the down-well turbine motor.
Research Organization:
Sperry Corporation, New York, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC03-79ET27131
Assignee:
Sperry Corporation (New York, NY)
Patent Number(s):
4,342,197
Application Number:
06/180745
OSTI ID:
864281
Country of Publication:
United States
Language:
English