Showing 1 - 7 of 7
A modified model for a borehole ground heat exchanger borefield (BHE) of a ground-source heat pump (GSHP) system was … inhomogeneous groundwater flow in the soil. The model was validated using FLUENT for a single borehole based on a constant load … along the effective length of the borehole with good agreement. The present model was then used to investigate the effect of …
Persistent link: https://www.econbiz.de/10010811677
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 …
Persistent link: https://www.econbiz.de/10010803683
In this paper a numerical model to analyze the thermal behaviour of vertical ground heat exchangers with a helical shaped pipe is presented. This type of configuration can be a suitable alternative to conventional ground heat exchangers, especially when the heating and cooling loads of the...
Persistent link: https://www.econbiz.de/10010603035
of great importance for the design and sizing of borehole thermal energy systems (BTESs). In Scandinavia groundwater … groundwater flow between the borehole and the surrounding rock. An enhanced heat transport then occurs due to the induced … part of the borehole while groundwater of ambient temperature enters the borehole through fractures at larger depths. This …
Persistent link: https://www.econbiz.de/10011044580
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 …
Persistent link: https://www.econbiz.de/10011044785
In this paper different approaches to groundwater flow and its effect in the vicinity of a borehole ground heat …
Persistent link: https://www.econbiz.de/10011045725
A modified three-dimensional finite difference model for the borehole ground heat exchangers of a ground-source heat …
Persistent link: https://www.econbiz.de/10011041133