Heat Transfer Refrigerant Transport Tubing Coatings and Insulation for a Direct Exchange Geothermal Heating/Cooling System and Tubing Spool Core Size
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United States of America Patent
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app pub date -
Sep 23, 2009
filing date -
Sep 24, 2008
priority date (Note) -
Abandoned
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Abstract
A method and/or apparatus for at least one of: protecting the sub-surface metal refrigerant transport tubing of a DX heat pump system from corrosive sub-surface environments via a specially designed protective coating; efficiently insulating the sub-surface liquid refrigerant transport line in a DX heat pump system; and enhancing at least one of the convective heat transfer rate and the efficiency of at least a DX heat pump system; and where the outside diameter (“OD”) of a central containment core upon which to roll a spool of sub-surface refrigerant transport tubing is specially sized so as not to damage any tubing insulation and so as to avoid any “S” bends during ground loop installation.
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