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Table 3 Parameters in specific depths for BHEÂ #2 exemplary
From: Modeling neighborhood-scale shallow geothermal energy utilization: a case study in Berlin
Layer ID | z-coordinate bottom end [\(\mathrm {m}\)] | Effective porosity | Effective subsurface thermal conductivity \(\lambda _{s,eff}\) [\(\mathrm {Wm^{-1}K^{-1}}\)] | Effective subsurface volumetric heat capacity \(\rho _{s,eff} c_{s,eff}\) [\(\mathrm {MJ m^{-3} K^{-1}}\)] | \(\mathrm {k_f}\) [\(\mathrm {ms^{-1}}\)] |
|---|---|---|---|---|---|
1 | 37.53 | 0.05 | 2.6 | 2.0 | \(1\times 10^{-7}\) |
2 | 19.73 | 0.2 | 2.3 | 2.5 | \(5\times 10^{-4}\) |
3 | 12.42 | 0.05 | 2.7 | 2.0 | \(1\times 10^{-7}\) |
4 | −  41.53 | 0.2 | 2.2 | 2.5 | \(1\times 10^{-4}\) |
5 | −  84.35 | 0.15 | 2.2 | 2.4 | \(5\times 10^{-5}\) |
6 | − 120 | 0.02 | 1.4 | 2.3 | \(5\times 10^{-9}\) |