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Table 1 Parameters used for the numerical simulation of the working fluid temperature

From: Temperature sensor module for groundwater flow detection around borehole heat exchangers

Units

Thermal conductivity [W m−1 K−1]

Volumetric heat capacity [MJ K−1 m−3]

Permeability [m2]

Porosity [–]

Temperature [°C]

Ground

1.2–3.0

2.3

3 × 10−11

0.200–0.300

10.0

BHE cement

2.0

1.0

1 × 10−19

0.010

10.0

Pipe

0.3

4.0

1 × 10−20

0.001

Calculated