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Open AccessFeature PaperArticle

A Case Study of Thermal Evolution in the Vicinity of Geothermal Probes Following a Distributed TRT Method

1
Geo-Centre of Northern Bavaria, Chair of Geology, Friedrich-Alexander University Erlangen-Nuremberg, Schlossgarten 5, 91054 Erlangen, Germany
2
Institute of Information and Communication Technologies (ITACA), Universitat Politècnica de València, Camino de Vera S/N, 46022 València, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Ricardo J. Bessa
Energies 2021, 14(9), 2632; https://doi.org/10.3390/en14092632
Received: 4 March 2021 / Revised: 29 April 2021 / Accepted: 30 April 2021 / Published: 4 May 2021
(This article belongs to the Special Issue Shallow Geothermal Energy 2021)
To meet the stated climate change targets and to ensure the capability of meeting the current and future energy demands, there is an urgent need to develop renewable energy sources, such as geothermal systems. If geothermal systems are to be cost-efficient and are to enjoy public confidence, it is essential that they are designed and installed in accordance with the prevailing site-specific conditions. A thorough understanding of the thermal behaviour of the surrounding ground is, therefore, critical. In this work, we investigated temperature and its evolution in the vicinity of a shallow geothermal helix-shaped borehole heat exchanger (BHE). To measure the temperature close to the actual geothermal system, an additional U-tube probe was installed at the edge of the same borehole. A thermal load was then applied to the BHE, and the temperature was detected in the nearby U-tube. The temperature measurements were made with a GEOSniff monitoring device. To understand these localised temperature measurements in the context of the Valencia test site, ERT measurements were also performed. The GEOSniff device permits measurements to be made with very high depth resolution, which allows the thermal properties of the surrounding ground to be derived precisely, thus, enabling the identification of the different textural domains. View Full-Text
Keywords: thermal evolution; thermal soil properties; shallow geothermal systems; distributed thermal response test (DTRT); wireless distributed temperature sensing (DTS); electrical resistivity tomography (ERT) thermal evolution; thermal soil properties; shallow geothermal systems; distributed thermal response test (DTRT); wireless distributed temperature sensing (DTS); electrical resistivity tomography (ERT)
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MDPI and ACS Style

Schwarz, H.; Badenes, B.; Wagner, J.; Cuevas, J.M.; Urchueguía, J.; Bertermann, D. A Case Study of Thermal Evolution in the Vicinity of Geothermal Probes Following a Distributed TRT Method. Energies 2021, 14, 2632. https://doi.org/10.3390/en14092632

AMA Style

Schwarz H, Badenes B, Wagner J, Cuevas JM, Urchueguía J, Bertermann D. A Case Study of Thermal Evolution in the Vicinity of Geothermal Probes Following a Distributed TRT Method. Energies. 2021; 14(9):2632. https://doi.org/10.3390/en14092632

Chicago/Turabian Style

Schwarz, Hans; Badenes, Borja; Wagner, Jan; Cuevas, José M.; Urchueguía, Javier; Bertermann, David. 2021. "A Case Study of Thermal Evolution in the Vicinity of Geothermal Probes Following a Distributed TRT Method" Energies 14, no. 9: 2632. https://doi.org/10.3390/en14092632

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