Direct exchange geothermal heating/cooling system...

Refrigeration – Structural installation – Geographic – e.g. – subterranean feature

Reexamination Certificate

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Details

C165S045000

Reexamination Certificate

active

07856839

ABSTRACT:
A sub-surface tubing arrangement for use in a direct exchange (DX) geothermal heating/cooling system includes a primary sub-surface liquid refrigerant transport line, a primary sub-surface vapor refrigerant transport line, at least one sub-surface heat exchange refrigerant transport line functionally connecting the primary sub-surface liquid refrigerant transport line to the primary sub-surface vapor refrigerant transport line, and either vertical or horizontal supplemental sub-surface refrigerant line connected to one of the primary sub-surface liquid or vapor refrigerant transport lines.

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