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

Schwarz H, Badenes B, Wagner J, Cuevas JM, Urchueguia J, Bertermann D (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Energies MDPI

Book Volume: 14

Pages Range: 2632

Issue: 9

DOI: 10.3390/en14092632

Abstract

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.

Authors with CRIS profile

Hans Schwarz Lehrstuhl für Geologie (Exogene Dynamik) Jan Wagner Lehrstuhl für Geologie (Exogene Dynamik) David Bertermann Lehrstuhl für Geologie (Exogene Dynamik)

Involved external institutions

Polytechnic University of Valencia / Universidad Politécnica de Valencia ES Spain (ES)

How to cite

APA:

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

MLA:

Schwarz, Hans, et al. "A Case Study of Thermal Evolution in the Vicinity of Geothermal Probes Following a Distributed TRT Method." Energies 14 (2021): 2632.

BibTeX: Download