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Table 1 Description of the TRT case studies

From: On the applicability of the moving line source theory to thermal response test under groundwater flow: considerations from real case studies

Location Claviére (TO) (Delmastro 2014) Gardolo (TN) (Zille 2013)
Hydro-geology Dolostones with shallow clayish interpositions (0–150 m), compact crystalline limestone (150–170 m), aquifers levels at 2, 22, and 150 m Dry gravel, saturated gravel, sand, and silt with saturated gravel (0–71.5 m), calcareous bedrock (71.5–115 m), aquifer level at 30 ÷ 32 m
Test BHE Double U pipe, Φext = 40 mm, D = 152 mm, H = 170 m, Termoplast Plus grouting (λgr = 2.0 W/(m K)) Double U pipe, Φext = 32 mm, D = 130 mm, H = 115 m, Termoplast Plus grouting (λgr = 2.0 W/(m K))
Undisturbed ground temperature T0 9.8 °C 13.1 °C
Expected ground properties λ = 2.7 W/(m K) λ = 2.23 W/(m K)
α = 1.17·10−6 m2/s α = 9.37·10−7 m2/s