the thermal performance of borehole heat exchangers (BHEs) of ground source heat pump (GSHP) system. This paper presented …

needed during design: both the borehole and the surrounding ground are affected by thermal exchange. The model here presented …-tube or coaxial pipes. Besides, ground temperature at different distances from borehole are calculated, taking into account …

Borehole heat exchangers are the fundamental component of ground coupled heat pumps, which are now widely employed for … energy saving in building heating and cooling. The improvement of the thermal efficiency of Coaxial Borehole Heat Exchangers …

The long-term performance of double U-tube BHE (borehole heat exchanger) fields is investigated by finite element …

in the design of borehole heat exchangers (BHE). The approach is based on recording the unsteady thermal response of a … fluctuations in these temperatures occur at small times (up to 8h) due to the transient effects inside the borehole and must be …

The objective of this study is to show the temperature distribution development in the borehole of the ground … was placed in a vertical borehole (VB) with 30 (VB1), 60 (VB2) and 90 (VB3)m depths and 150mm diameters. The experimental …

Computer simulation of borehole ground heat exchangers used in geothermal heat pump systems was conducted using three …-dimensional implicit finite difference method with rectangular coordinate system. Each borehole was approximated by a square column … circumscribed by the borehole radius. Borehole loading profile calculated numerically based on the prescribed borehole temperature …

borehole thermal resistance. One popular method to estimate the thermal parameters is the interpretation of in situ thermal …. The Tm response corresponds to the physically unrealistic hypothesis of constant heat flux along a borehole. Using a 3D … finite element model of the borehole, we show that Tm does not correspond to the fluid mean temperature within the borehole …