Heat exchange – Geographical
Patent
1976-10-21
1978-08-15
Myhre, Charles J.
Heat exchange
Geographical
165 85, F28D 1500
Patent
active
041065557
ABSTRACT:
A ground heat exchanger adapted to be buried in the ground and to be used in association with a heat pump system for heating and cooling. The exchanger includes a heat conducting metal plate adapted to be vertically buried in the ground and carrying a fluid circulating coil adapted to be connected to the circuit of the heat pump system. The ends of the plate are each movably inserted into a corresponding slit of an upright tube filled with a heat conducting grease. Weights compress the grease within the tubes and cause its ejection through apertures of the tubes along both surfaces of the plate, so as to fill any voids between the plate and the ground and to also fill any new voids which may develop due to contraction of expansion of the plate with temperature variation and also due to ground movement. The top ends of the tubes are accessible above ground surface, so that they may be refilled according to need. The elimination of air pockets or voids maintains the entire surfaces of the plate in contact with the ground, whereby the heat exchange efficiency is maintained even after a long period of use. The thermal grease also prevents rusting of the plate surfaces which might impair its heat conductivity.
REFERENCES:
patent: 2513373 (1950-07-01), Sporn et al.
patent: 2805557 (1957-09-01), Hilger
patent: 3586102 (1971-06-01), Gilles
patent: 3616835 (1971-11-01), Lavrenty
Myhre Charles J.
Streule, Jr. Theophil W.
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