WebApr 20, 2024 · Borehole heat exchangers (BHEs) commonly reach depths of several tens of meters and cross different aquifers. Concerns have been raised about the possibility of boreholes to act as preferential pathways for contaminant transport among aquifers (cross-contamination). This article employs numerical modelling of contaminant transport in the … WebMar 10, 2024 · Finally, the application of the water /Al 2 O 3 nanofluid (which has suitable performance in heat transfer) with different nanoparticles volume fractions in the …
An analytical model for transient heat transfer in ground-coupled heat …
WebOct 1, 2024 · Closed-loop deep borehole heat exchanger (DBHE) systems for producing heat from geothermal sources have the advantage that the heat transfer fluid is contained within the loop. In this study, for the first time, a U-configuration closed-loop DBHE was examined to evaluate the energy produced per unit energy invested from a 2330-m-deep geothermal … WebJan 1, 2014 · Drillers with Colaluce Well & Pump Service feed Twister piping from a reel into a borehole at a jobsite in New Jersey. Use of the Twister ground loop heat exchanger … logic ties in p6
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WebDec 24, 2024 · First, the heat-transfer models inside and outside the borehole are introduced, respectively; then, on the basis of time superposition and the segment cylinder … WebIn this communication, simulation studies of a borehole heat exchanger are worked out through computational fluid dynamics (CFD) software. A two dimensional (k-ε) realizable turbulent model with standard wall function is used to evaluate the temperature variation along with depth of BHE, pitch optimization and to determine the effect of two … WebJun 15, 2024 · Modeling the heat transfer process of the coaxial deep borehole heat exchanger is very important for operation analysis. Peng Li et al. [22] established a 3D numerical model for a coaxial deep BHE. Changlong Wang et al. [21] developed a semi-analytical model by considering the geothermal gradient and the heat capacities of … logictics company