Heat transfer equipment, namely, geothermal heat transfer systems for installation within geological environments, such as the earth, lakes and ponds, in the nature of coaxial-flow heat transfer systems

Heat transfer equipment for installation within geological environments, such as the Earth, lakes and ponds, and including coaxial-flow heat transfer systems and structures comprised of a thermally-conductive outer tube structure co-axially arranged about an inner tube structure and provided with a cap structure, so as to seal off the inner and outer tube structures and provide an inner flow channel that extends down the inner tube structure and transitions into an outer flow channel between ...