Patent ID: 6167715
Filing Date: 2001-01-02
Classification: F24F,F24T,F25D,F28D,Y02B,Y02E

Abstract:
A direct geothermal heat exchange refrigerant subcool system comprising in combination: a) a subcooler connected in fluid communication with an output of a condenser of an air conditioner, refrigeration unit, or heat pump enabling a refrigerant to flow through said subcooler; b) a secondary fluid refrigerant subcool system for subcooling the refrigerant that had previously passed through the condenser including at least one secondary tube thermally connected to a tube carrying the liquid refrigerant; c) said subcooler and secondary thermally connected tubes being buried in the ground for direct geothermal heat exchange between the refrigerant and the earth; and d) means for controlling the rate of flow of fluid through said secondary tube for purposes of additional auxiliary sub-cooling or for purposes of preventing geothermal saturation, to provide the maximum available subcooling of the liquid refrigerant.