Evaluación del potencial de acuíferos de baja transmisividad para sistemas de almacenamiento de energía térmica en acuíferos: un estudio de caso en Flandes (Bélgica) ; 低传导系数含水层地下储能系统的潜力评估:以比利时弗兰德地区为例 ; Avaliação do potencial de aquíferos de baixa transmissividade para sistemas de armazenamento de energia térmica: um estudo de caso em Flandres (Bélgica) ; Evaluation du potentiel des aquifères à faible transmissivité pour les systèmes de stockage d’énergie thermique en aquifère: un cas d’étude en Flandres (Belgique) ; Assessing the potential of low-transmissivity aquifers for aquifer thermal energy storage systems: a case study in Flanders (Belgium)
Abstract The Member States of the European Union pledged to reduce greenhouse gas emissions by 80–95% by 2050. Shallow geothermal systems might substantially contribute by providing heating and cooling in a sustainable way through seasonally storing heat and cold in the shallow ground (<200 m). When the minimum yield associated with the installation of a cost-effective aquifer thermal energy storage (ATES) system cannot be met, borehole thermal energy storage, relying mostly on the thermal conductivity of the ground, is proposed. However, for large-scale applications, this requires the inst... Mehr ...
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Dokumenttyp: | Artikel |
Erscheinungsdatum: | 2023 |
Reihe/Periodikum: | Hydrogeology Journal ; volume 31, issue 8, page 2363-2380 ; ISSN 1431-2174 1435-0157 |
Verlag/Hrsg.: |
Springer Science and Business Media LLC
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Sprache: | Englisch |
Permalink: | https://search.fid-benelux.de/Record/base-27379480 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | http://dx.doi.org/10.1007/s10040-023-02696-5 |
Abstract The Member States of the European Union pledged to reduce greenhouse gas emissions by 80–95% by 2050. Shallow geothermal systems might substantially contribute by providing heating and cooling in a sustainable way through seasonally storing heat and cold in the shallow ground (<200 m). When the minimum yield associated with the installation of a cost-effective aquifer thermal energy storage (ATES) system cannot be met, borehole thermal energy storage, relying mostly on the thermal conductivity of the ground, is proposed. However, for large-scale applications, this requires the installation of hundreds of boreholes, which entails a large cost and high disturbance of the underground. In such cases, ATES systems can nevertheless become interesting. This paper presents a case study performed on a Ghent University campus (Belgium), where the feasibility of ATES in an area with a low transmissivity was determined. The maximum yield of the aquifer was estimated at 5 m 3 /h through pumping tests. Although this low yield was attributed to the fine grain size of the aquifer, membrane filtering index tests and long-term injection tests revealed that the clogging risk was limited. A groundwater model was used to optimize the well placement. It was shown that a well arrangement in a checkerboard pattern was most effective to optimize the hydraulic efficiency while maintaining the thermal recovery efficiency of the ATES system. Hence, for large-scale projects, efficient thermal energy storage can also be achieved using a (more cost-effective) ATES system even in low-permeability sediments.