Thermal Behaviour of Deep U-tube Geothermal Systems for Sustainable Energy Exploitation: Innovative Concepts Applied to Two Case Studies in Italy

Gianluca Gola1, Eloisa Di Sipio2, Marina Facci2, Antonio Galgaro2 and Adele Manzella1, (1)CNR Institute of Geosciences and Earth Resources, Pisa, Italy, (2)University of Padua, Department of Geosciences, Padua, Italy