Feasibility study for the geothermal exploitation of the Brenner Base Tunnel

The thesis deals with the low enthalpy geothermal energy and its exploitation through tunnels, in the specific case the Brenner Base Tunnel (BBT). The heat stored in rock masses is proposed to be exploited by a geothermal system, composed by a pipe system placed inside of the lining, defined energy lining. Through a geothermal characterization, laboratory tests and temperature measurements, it has been possible to define the energy potential of the considered part of the BBT. A scheme of the energy lining has been designed, with regard to does not alter the other working phases. A road with snow-melting and de-icing has been supposed as possible energy user and a cost estimation of the investment was obtained. Operating costs have been compared with other heating solutions. The study shows the technical and economic feasibility of this solution and represents a step for future research on this subject.