GEOTHERMAL LOOP IN-GROUND HEAT EXCHANGER FOR ENERGY EXTRACTION

摘要

A geothermal loop in-ground heat exchanger for energy extraction including an outer tubular casing and an inner tubular portion spaced from the outer tubular casing to define an injection space wherein a working fluid is injected into the injection space at a first temperature, T1 whilst the heat exchanger is located in a geothermal heat reservoir and the working fluid exits through the inner tubular portion at a second temperature, T2 which is greater than T1.