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Impact on the Sustainable Development Goals (SDGs)

Analysis of institutional authors

Javadi, HAuthorUrchueguia, JfAuthorBadenes, BAuthor

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Temperature evolution around four laboratory-scale borehole heat exchangers grouted with phase change materials subjected to heating-cooling cycles: An experimental study

Publicated to:Journal Of Energy Storage. 74 109302- - 2023-12-25 74(), DOI: 10.1016/j.est.2023.109302

Authors: Zirgulis, Giedrius; Javadi, Hossein; Chaudhari, Ojas Arun; Ghafar, Ali Nejad; Fontana, Patrick; Sanner, Burkhard; Urchueguia, Javier F; Badenes, Borja; Castell, Jose Manuel Cuevas; Shuster, Michael

Affiliations

Bazan Grp, Carmel Olefins - Author
CEMEX Deutschland AG - Author
Implen Sverige AB, Liljeholmsstranden 5 - Author
RISE Res Inst Sweden, Dept Infrastruct & Concrete Construct, Brinellgatan 4 - Author
UBeG GbR, Reinbergstasse 2 - Author
Univ Politecn Valencia UPV, Inst Informat & Commun Technol ITACA, Informat & Commun Technol Versus Climate Change IC, Camino Vera s-n - Author
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Abstract

This article presents the experimental results from a unique laboratory test-setup used to comparative study of heat transfer conditions in borehole heat exchangers with different grouts under a controlled environment. The work was part of a larger, EU-funded project on advanced materials for borehole heat exchangers pipes and grout, GEOCOND. Four grout columns with different formulations were cast and tested under cyclic heating and cooling. One grout column was cast using high thermal conductivity grout; two columns were cast from high thermal conductivity grout with microencapsulated phase change material (MC-PCM) and one with shape-stabilised phase-change material (SS-PCM). The objective of the test was to comparatively evaluate perfor-mance of the borehole heat exchanger under a cyclic temperature regime and to investigate if the selected phase change materials (PCM) embedded in grout can be activated by cyclic heating and function steadily. Twenty-five heating-cooling cycles were performed, each lasted 24 h. The results showed clear cooling delay in grouts containing PCM associated with the crystallization heat release. The cooling delay was better expressed in grouts with SS-PCM. The PCM related cooling delay was stable throughout all the cycling in SS-PCM containing grouts, however, the effect vanished in grouts with MC-PCM.

Keywords

Affordable and clean energyBorehole heat exchangerBorehole heat exchangersBoreholesCoolingCyclic heatingGeothermal energyGroutingHeating-cooling cycleHigh thermal conductivityHigh thermal conductivity groutIndustry, innovation and infrastructureLaboratory testMortarPerformancePhase change materialsPhase-change materialPump systemResponsible consumption and productionShallow geothermal energiesShallow geothermal energyShallow geothermal energy, borehole heat exchanger, high thermal conductivity grout, phase-change material, cyclic heatingShape stabilized phase change materialSustainable cities and communitiesTemperature evolutionTest setupsThermal conductivityThermal-energy storage

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Journal Of Energy Storage due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2023, it was in position 29/171, thus managing to position itself as a Q1 (Primer Cuartil), in the category Energy & Fuels.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 2.85, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jun 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-06-27, the following number of citations:

  • WoS: 4
  • Scopus: 5

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-27:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 23 (PlumX).
Continuing with the social impact of the work, it is important to emphasize that, due to its content, it can be assigned to the area of interest of ODS 7 - Ensure access to affordable, reliable, sustainable and modern energy for all, ODS 9 - Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation, ODS 11 - Make cities and human settlements inclusive, safe, resilient and sustainable, ODS 12 - Ensure sustainable consumption and production patterns, with a probability of 0% according to the mBERT algorithm developed by Aurora University.

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Germany; Israel; Sweden; Switzerland.