[TRNSYS-users] TESS library - GHP library - Vertical BHE, U-tube - Fluid-to-ground resistance

[Damien Casetta]

Hi,

When using a vertical borehole heat exchanger (with known resistance), how
the so-called "fluid-to-ground" resistance is defined? Practically, in the
particular case of a U-tube heat exchanger, is it an "effective" thermal
resistance (if there was only one tube) or the thermal resistance for a
single tube?
One more thing, the unit is not that clear ("any"). Is it [W/(m.K)]?

Thanks in advance,

Have a nice day,

Regards,

-- 
*Damien Casetta*

*Chalmers University of Technology *| Energy and Environment | Exchange
student
*INSA Lyon* Génie Energétique et Environnement | Elève ingénieur
**
+46.7.60.66.31.45
+33.6.71.78.03.75
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