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Table 4 Temperature difference comparison for different numerical setups
From: Modeling neighborhood-scale shallow geothermal energy utilization: a case study in Berlin
Max. 1 day time stepping \(\Delta T_{abs} [K] (\Delta T_{rel} [\%])\) | Max. 5 days time stepping \(\Delta T_{abs} [K] (\Delta T_{rel} [\%])\) | Max. 15 days time stepping \(\Delta T_{abs} [K] (\Delta T_{rel} [\%])\) | |
|---|---|---|---|
FEFLOW (using \(T_{\text {out}}^{n-1}\)) | 0.940 (1.05) | 0.883 (7.05) | 0.880 (7.37) |
OGS model 1 (using \(T_{\text {out}}^{n}\)) | 0.943 (0.74) | 0.929 (2.21) | 0.927 (2.42) |
OGS model 2 (using \(T_{\text {out}}^{n-1}\)) | 0.944 (0.63) | 0.943 (0.74) | 0.887 (6.63) |