Research Article
Thermally Affected Zone (TAZ) Assessment in Open-Loop Low-Enthalpy Groundwater Heat Pump Systems (GWHPs): Potential of Analytical Solutions
Table 2
Thermal and hydrodynamic parameters used as input data in FEFLOW modelling (unit 1 and unit 2) [
12].
| Parameter | Symbol | Unit of measure | Test site value |
| Unit 1 | Horizontal hydraulic conductivity | | [ms-1] | 0.0025 | Vertical hydraulic conductivity | | [ms-1] | 0.00001 | Effective porosity | | [-] | 0.2 | Volumetric heat capacity of the fluid | | [106 J·m-3K-1] | 4.2 | Volumetric heat capacity of the solid | | [106 J·m-3K-1] | 1.3 | Heat conductivity of the fluid | | [J·m-1·s-1K-1] | 0.65 | Heat conductivity of the solid | | [J·m-1·s-1K-1] | 3 | Longitudinal dispersivity | | [m] | 5 | Transverse dispersivity | | [m] | 0.5 | Unit 2 | Horizontal hydraulic conductivity | | [m·s-1] | 0.00027 | Vertical hydraulic conductivity | | [m·s-1] | 0.000054 | Effective porosity | | [-] | 0.2 | Volumetric heat capacity of the fluid | | [106 J·m-3K-1] | 4.2 | Volumetric heat capacity of the solid | | [106 J·m-3K-1] | 2.52 | Heat conductivity of the fluid | | [J·m-1·s-1K-1] | 0.65 | Heat conductivity of the solid | | [J·m-1·s-1K-1] | 3 | Longitudinal dispersivity | | [m] | 5 | Transverse dispersivity | | [m] | 0.5 |
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