The borehole thermal energy storage at Emmaboda, Sweden: First distributed temperature measurements

Ramstad, Randi K.; Alonso, María Justo; Acuña, José; Andersson, Olof; Stokuca, Milan; Håkansson, Niklas; Midttømme, Kirsti; Rydell, Leif

doi:10.1080/23744731.2022.2127621

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…The first borehole thermal energy storage (BTES) sites were developed in a xylem factory located in Sweden. This type of technology involves energy storage with a solid storage medium (rocks and sands) [37,38].…”

Section: Energy Storage System Evolutionmentioning

confidence: 99%

The Energy Storage Technology Revolution to Achieve Climate Neutrality

Badea,

Șerban,

Anasiei

et al. 2023

Energies

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The intensive exploitation and usage of fossil fuels has led to serious environmental consequences, including soil, water, and air pollution and climate changes, and it has compromised the natural resources available for future generations. In this context, identifying new energy storage technologies can be considered a sustainable solution to these problems, with potential long-term effects. In this work, were analyzed different alternatives that can be suitable for replacing non-renewable sources, where hydrogen, wave, wind, or solar energies were considered. Although they have numerous advantages in terms of usage and substantially reducing the environmental impact, this paper is focused on lithium-ion batteries, whose high performance and safety during operation have made them attractive for a wide range of applications. The study of potential replacement technologies and the technical requirements for the main materials used is the starting point in reducing the environmental footprint, without affecting the technical capabilities, followed by the transition toward economic circularity and climate neutrality.

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Section: Energy Storage System Evolutionmentioning

confidence: 99%

The Energy Storage Technology Revolution to Achieve Climate Neutrality

Badea,

Șerban,

Anasiei

et al. 2023

Energies

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“…Besides their application to DTRTs, fiber optic cables have also been used to monitor the operation of borehole and aquifer thermal energy storages (BTES and ATES) [ 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 ]. Additionally, DTS data have indirectly been capitalized on to create thermal conductivity maps [ 41 ] or to measure the undisturbed temperature profile and evaluate its effect on design procedures [ 21 , 42 , 43 , 44 ].…”

Section: Introductionmentioning

confidence: 99%

Calibration and Uncertainty Quantification for Single-Ended Raman-Based Distributed Temperature Sensing: Case Study in a 800 m Deep Coaxial Borehole Heat Exchanger

Pallard

Lazzarotto

Acuña

et al. 2023

Sensors

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Raman-based distributed temperature sensing (DTS) is a valuable tool for field testing and validating heat transfer models in borehole heat exchanger (BHE) and ground source heat pump (GSHP) applications. However, temperature uncertainty is rarely reported in the literature. In this paper, a new calibration method was proposed for single-ended DTS configurations, along with a method to remove fictitious temperature drifts due to ambient air variations. The methods were implemented for a distributed thermal response test (DTRT) case study in an 800 m deep coaxial BHE. The results show that the calibration method and temperature drift correction are robust and give adequate results, with a temperature uncertainty increasing non-linearly from about 0.4 K near the surface to about 1.7 K at 800 m. The temperature uncertainty is dominated by the uncertainty in the calibrated parameters for depths larger than 200 m. The paper also offers insights into thermal features observed during the DTRT, including a heat flux inversion along the borehole depth and the slow temperature homogenization under circulation.

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