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Title: Borehole Ground Heat Exchangers and The Flow of Underground Water
Authors: Iosif-Stylianou, Iosifina 
Christodoulides, Paul 
Aresti, Lazaros 
Tassou, Savvas A. 
Florides, Georgios A. 
Keywords: Ground Heat Exchangers;Borehole;Undergroundwater flow;Geothermal energy;Computational modeling
Category: Environmental Engineering
Field: Engineering and Technology
Issue Date: Sep-2018
Source: International Journal of Industrial Electronics and Electrical Engineering, 2018, vol. 6,no. 9, pp. 67-72
Journal: International Journal of Industrial Electronics and Electrical Engineering 
Abstract: Vertical Ground Heat Exchangers (GHEs) in boreholes are a major form of Geothermal Energy applications. When water flowing underground past the borehole the heat injection rates of the GHE are subject to change. Here, we construct a mathematical model for such regimes. Then, based on the Finite Element Method we construct a corresponding computational model, which is validated with experimental data of a Thermal Response Test carried out in Lakatameia, Cyprus. Finally, using the validated model, the thermal behavior of borehole GHEs is investigated by studying the effect of the (a) BH radius, (b) U-tube diameter, (c) U-tube leg and BH centers distance, (d) grout thermal conductivity and (e) underground water velocity.
Description: Presented at 143th ISER International conference, 2018, 24-25 July, Melbourne, Australia
ISSN: 2349-204X
Type: Article
Appears in Collections:Άρθρα/Articles

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