Heat exchange – Geographical
Patent
1977-05-26
1979-03-06
Freeh, William L.
Heat exchange
Geographical
165104S, F25B 2702, F28F 122
Patent
active
041425766
ABSTRACT:
A heat pump for cooling or heating a conditioned space includes an underground heat pipe laid into a hole in the ground back-filled with soil. The heat transfer of the soil is improved by dispersing highly water-absorbent hydrophilic polymeric gel particles soaked with water around the heat pipe. The water-soaked particles preferably are coated with a water-impermeable film. The water may also be entrapped in liquid form in small bags. Also, a water impermeable sheath may be formed around the back-fill soil to minimize evaporation from the particles.
REFERENCES:
patent: 2846421 (1958-08-01), Pollock
patent: 3563304 (1971-02-01), McGrath
patent: 4010731 (1977-03-01), Harrison
patent: 4011736 (1977-03-01), Harrison
Perry Elijah R.
Rabinowitz Mario
Electric Power Research Institute Inc.
Freeh William L.
Gluck Richard E.
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