Air operated underground cooler means with natural lift

Details Air operated underground cooler means with natural lift Air operated underground cooler means with natural lift

1974-10-11

1976-07-20

Davis, Jr., Albert W.

Heat exchange

Geographical

165129, 165DIG1, 261DIG11, F28B 500

Patent

active

039701409

ABSTRACT:
The difference in density between heated and unheated air is used to provide flow of air across a heat transfer means located underground. An underground passageway connects an inlet orifice with an outlet orifice for flow of ambient air therethrough. The passageway comprises at least one essentially vertical shaft, said vertical shaft terminating at the outlet orifice and containing proximate its lower end said heat transfer means.

REFERENCES:
patent: 3635042 (1972-01-01), Spangemacher

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