Use of electrical resistivity tomography measurements for investigation of different grouting materials for very shallow geothermal applications within varying seasonal conditions; Applied on a geothermal earth-air heat exchanger system

Hans Schwarz, Jian Lin and David Bertermann

Renewable Energy, 2024, vol. 228, issue C

Abstract: To achieve the current climate targets, heat pump systems like very shallow geothermal applications are gaining ground. However, the dimensioning of these ground coupled systems is soil-dependent and thus subject to significant differences in efficiency. Furthermore, the thermal properties of the grouting materials are essential for heat transfer in the direct vicinity of the geothermal application. To provide a non-invasive assessment of relevant soil and grouting characteristics, electrical resistivity tomography (ERT) measurements were performed.

Keywords: Electrical resistivity tomography; Soil properties; Earth air-heat exchanger; Very shallow geothermal; Grouting material; Seasonal impact (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:228:y:2024:i:c:s0960148124007328

DOI: 10.1016/j.renene.2024.120664

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