Power plants – Utilizing natural heat – Geothermal
Patent
1988-02-03
1988-10-11
Ostrager, Allen M.
Power plants
Utilizing natural heat
Geothermal
165 45, F03G 700
Patent
active
047761695
ABSTRACT:
Geothermal energy may be recovered through an underground well drilled to a depth approaching the earth's magma by circulation of injected heat transfer fluids flowing along separate parallel paths within closed loops extending into the well. One or more of the injected fluids may be conducted by a heat transfer portion of the loop establishing a lower heat absorbing zone within the well exposed to superheating conditions at ultra-deep depths. Circulation of the fluid within said heat transfer portion may be prolonged to efficiently absorb heat and heat loss may be minimized by heat exchange relationships between the parallel flow paths above the lower heat absorbing zone.
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