Refrigeration – Structural installation – Geographic – e.g. – subterranean feature
Patent
1980-05-20
1982-04-20
Wayner, William E.
Refrigeration
Structural installation
Geographic, e.g., subterranean feature
165 45, 165142, F28D 712, F25D 2312
Patent
active
043252281
ABSTRACT:
The geothermal system for conditioning air includes a heat pump (10) of the liquid-to-air type and an improved heat sink (40) in heat exchange relationship with the subterranean water system of the earth and connected to the heat pump through a liquid circulating system. The heat sink includes an elongate metallic liquid container (41) providing a large amount of surface contact with the earth and of a sufficient length and buried at a sufficient depth to provide a good heat transfer relationship with the subterranean water system of the earth. A liquid inlet conduit (44) communicates with the interior of the upper end of the liquid container (41) and an outlet conduit (insulator tube 45 and return pipe 54) extends longitudinally within the container and thermally insulates the outlet liquid from the liquid in the container. A liquid dispensing tube (75) is provided to periodically dispense liquid into the soil surrounding the container (41) to maintain the soil in a moist state and to thereby increase the thermal conductivity between the container (41) and the surrounding earth and subterranean water system.
REFERENCES:
patent: 1981730 (1934-11-01), Hawkins
patent: 2167878 (1939-08-01), Crawford
patent: 2438720 (1948-03-01), Smith
patent: 2461449 (1949-02-01), Smith et al.
patent: 2513373 (1950-07-01), Sporn et al.
patent: 3563304 (1971-02-01), McGrath
patent: 4008709 (1977-02-01), Jardine
patent: 4171721 (1979-10-01), Movick
patent: 4257239 (1981-03-01), Partin et al.
Water Well Journal 12/1979 pp. 26 and 27.
EPRI Journal 3/1980.
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