Heat exchange system and process for heating and cooling using g

Details Heat exchange system and process for heating and cooling using g Heat exchange system and process for heating and cooling using g

1980-09-11

1984-05-15

Cline, William R.

Heat exchange

Geographical

62260, F24D 1100

Patent

active

044482388

ABSTRACT:
In a system and process for heating and cooling a house, circulated and/or intake air is passed through a system which utilizes low intensity and readily available geothermal heat capacity to heat or cool such air. The ducts of the system have an internal configuration and size that provides for relatively low velocity and correspondingly low pressure drop through such ducts yet provides air flow patterns that have sufficiently high air velocities adjacent the interior surface of the duct to provide extremely good heat exchange between such air and the interior surfaces of the ducts to utilize the low intensity temperature differentials provided by the earth mantle at only moderate depths adjacent a house in any of a great variety of areas. The exterior surfaces of the ducts are shaped to avoid compaction of porous filling material located between the relatively small diameter ducts and the large diameter hole in which such ducts are located and thereby maintains a porous condition of the material peripheral to the duct and so provides heat exchange by water vapor flow as well as conduction between the external surface of the small diameter ducts and the large surface of the hole in the ground from which desired low intensity heat is absorbed or to which undesired heat is passed.

REFERENCES:
patent: 2178176 (1939-10-01), Lamm
patent: 2323122 (1943-06-01), Crawford
patent: 3812903 (1974-05-01), Thomason
patent: 4196719 (1980-04-01), Skrivseth
patent: 4234037 (1980-11-01), Rogers et al.

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