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Geothermal Energy

Science – Society – Technology

Table 1 Parameters of the coaxial borehole heat exchangers

From: Finite element simulation of permeable fault influence on a medium deep borehole thermal energy storage system

BHE geometry

Coaxial

Borehole diameter

0.203 m

Inlet pipe diameter

0.1143 m

Outlet pipe diameter

0.1683 m

Refrigerant thermal conductivity

0.48 W m−1 K−1

Refrigerant volumetric heat capacity

4 MJ m−3 K−1

Computational method

Quasi-stationary (Eskilson an Claesson 1988)

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