Thermally Affected Zone (TAZ) Assessment in Open-Loop Low-Enthalpy Groundwater Heat Pump Systems (GWHPs): Potential of Analytical Solutions

Table 1

Nomenclature of thermal and hydrodynamic parameters.

Parameter	Symbol	Unit of measure
Horizontal hydraulic conductivity		[ms^-1]
Vertical hydraulic conductivity		[ms^-1]
Effective porosity		[-]
Volumetric heat capacity of the fluid		[J·m^-3K^-1]
Volumetric heat capacity of the solid		[J·m^-3K^-1]
Volumetric heat capacity of the porous media		[J·m^-3K^-1]
Heat conductivity of the fluid		[W·m^-1K^-1]
Heat conductivity of the solid		[W·m^-1K^-1]
Heat conductivity of the porous media		[W·m^-1K^-1]
Thermal diffusivity		[m·s^-1]
Longitudinal dispersivity		[m]
Transverse dispersivity		[m]
Temperature		[°C]
Time		[day]
Flow rate		[m^3day^-1]
Volumetric heat source		[Wm^-3]
Darcy velocity		[ms^-1]
Hydraulic gradient along the -direction		[-]
Aquifer thicknesses		[m]