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Table 1 Parameters for the simulation of the working fluid temperature along the BHE

From: First field application of temperature sensor modules for groundwater flow detection near borehole heat exchanger

ParameterValue
Pipe diameter, wall thickness32 mm, 2.9 mm
Pipe length100 m
Thermal conductivity of the pipe wall0.3 W m−1 K−1
Thermal conductivity of the cement2 W m−1 K−1
Thermal conductivity of rocks2 to 3.4 W m−1 K−1
Inlet temperature14.5 °C
Outlet temperatureCalculated
Flow rate24.4 L min−1