Direct thermal-electric conversion for geothermal energy recover

Details Direct thermal-electric conversion for geothermal energy recover Direct thermal-electric conversion for geothermal energy recover

1975-09-17

1977-09-06

Duggan, Donovan F.

Electricity: single generator systems

Nonmagnetic-type generator

310306, 60641, 165105, H01J 4500

Patent

active

040470938

ABSTRACT:
Direct conversion systems for in situ conversion of geothermal energy into electricity are described in which thermoelectric generators and/or thermionic convertors directly convert the earth's thermal energy into electrical energy. The choice of a thermoelectric or thermionic system is dictated by the temperature domain of the particular geothermal formation.
The basic unit of the described system includes at least two coaxially-intersecting heat pipes, extending between a high temperature geological strata and a low temperature geological strata. Thermal-electric energy conversion devices are positioned within an annulus between the intersecting heat pipes.

REFERENCES:
patent: 3302042 (1967-01-01), Grover et al.
patent: 3441752 (1969-04-01), Grover et al.
patent: 3834171 (1974-09-01), Johansson
patent: 3857244 (1974-12-01), Faucette
patent: 3864917 (1975-02-01), Jacoby
patent: 3911683 (1975-10-01), Wolf

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