GNGTS 2013 - Atti del 32° Convegno Nazionale

Further, a numerical simulation of electrical resistivity values for different porous media within the box should be carried out, to evaluate the reliability of frequently-used numerical models for the dimensioning of near surface geothermal systems. Comparisons between the experimental results and the numerical model should be verified. Moreover, the same methodology will also be applied at field scale by performing electrical surveys on a test site of STES system, which is being built at the University Campus of Torino (Grugliasco, TO, Italy). In particular, the network configuration shall be applied with more than 24 electrodes (48 or 72) in order to acquire data for a useful 3D imaging of the subsoil. The periodical geophysical surveys will be coupled with a continuous temperature recording data within the BHEs and the solar panels. 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Huber H. and Arslan U.; 2012: Geothermal field tests with forced groundwater flow . Proceedings of the Thirty-Seventh Workshop on Geothermal Reservoir Engineering, 1 – 5. Leong W. H., Tarnawski V. R. and Aittomäki A.; 1998: Effect of soil type and moisture content on ground heat pump performance . International Journal of Refrigeration, 21, 595 – 606. Ramirez A. and Daily W.; 1993: Monitoring an Underground Steam Injection Process Using Electrical Resistance Tomography . Water Resources Research, 29 (1), 73 – 87. Reuss M., Beuth W., Schmidt M. and Schoelkopf W.; 2006: Solar district heating with seasonal storage in Attenkirchen. ECOSTOCK 2006 . In: 10th International Conference on Thermal Energy Storage, Stockton, USA. Singh D. N. and Konchenapalli D.; 2000: Generalized relationship for estimating soil thermal resistivity . Experimental Thermal and Fluid Science, 22 , 133 – 143. Singh D. N., Kuriyan S. J. and Manthena K. C.; 2001: A generalized relationship between soil electrical and thermal resistivities . Experimental Thermal and Fluid Science, 24 , 175 – 181. Sreedeep S., Reshma A. C. and Singh D.N.; 2005: Generalized relationship for determining soil electrical resistivity from its thermal resistivity . Experimental Thermal and Fluid Science, 29 , 217 – 226. Xu J., Wang R. Z. and Li Y.; 2013: A review of available technologies for seasonal thermal energy storage . Solar Energy, http://dx.doi.org/10.1016/j.solener.2013.06.006. 128 GNGTS 2013 S essione 3.2