ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,892, issued on May 20.
"Thermosiphon geothermal energy recovery systems and methods" was invented by Domenico Daprocida (Calgary, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to systems and methods of geothermal energy production using a dual thermosiphon heat exchange system. In one system two working fluids in which a thermosiphon flow is induced to recover thermal energy from depth. The system has a subterranean heat exchanger that is formed into an underground formation by drilling, and which is flooded with a first working fluid. Heat from the formation is transferred into the first working fluid. A recov...