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Numerical modeling and validation of a large-scale borehole thermal energy storage system in Finland

  • Tianchen Xue*
  • , Juha Jokisalo
  • , Risto Kosonen
  • , Mika Vuolle
  • , Federica Marongiu
  • , Sami Vallin
  • , Nina Leppäharju
  • , Teppo Arola
    • *Corresponding author for this work
  • Equa Simulation Finland Oy
  • Geological Survey of Finland
  • Tallinn University of Technology
  • Nanjing Tech University

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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Abstract

With the increasing demand in reducing carbon dioxide emissions, utilizing thermal energy storage technology, including borehole thermal energy storage (BTES), has become an efficient way to improve energy efficiency. Accurate modelling of the BTES is crucial to correctly predict the BTES performance in the building energy simulation. In this study, a large-scale BTES used for an educational building in Finland, was modelled in the IDA ICE 4.8. The BTES consists of 74 groundwater-filled boreholes with 310 m depth. The boreholes were installed with single U-tube heat exchangers. The BTES model was validated by 1.5-years measured inlet and outlet fluid temperatures of the BTES field. The results show the developed BTES model can predict the storage performance with high accuracy. During the 1.5-years validation period, the average difference between simulated and measured inlet and outlet fluid temperatures of the BTES field were within 1 °C.
Original languageEnglish
Title of host publicationBuildSim Nordic 2022
PublisherEDP Sciences
Chapter06003
Pages1-6
Number of pages6
Volume362
DOIs
Publication statusPublished - 1 Dec 2022
MoE publication typeA4 Conference publication
EventBuildSim-Nordic - Copenhagen, Denmark
Duration: 22 Aug 2021 → 23 Aug 2022
Conference number: 10

Publication series

NameE3S Web of Conferences
Volume362
ISSN (Electronic)2267-1242

Conference

ConferenceBuildSim-Nordic
Abbreviated titleBSN
Country/TerritoryDenmark
CityCopenhagen
Period22/08/2021 → 23/08/2022

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 4 - Quality Education
    SDG 4 Quality Education
  2. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy
  3. SDG 13 - Climate Action
    SDG 13 Climate Action

Keywords

  • Borehole thermal storage
  • numerical modeling
  • experimental validation

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    • -: FINEST TWINS GA856602Nieminen

      Nieminen, M. (Project Member), Toiskallio, K. (Project Member), Hajian, H. (Project Member), Rönkkö, J. (Project Member), Syri, S. (Project Member), Yeung, D. (Project Member), Hyvönen, J. (Project Member), Kuzmanovski, V. (Project Member), Salomaa, V. (Project Member), Agriesti, S. (Project Member), Koskinen, K. (Project Member), Mir, S. (Project Member), Abdollahi, E. (Project Member), Dibaj, S. (Project Member), Yousefnezhad, N. (Project Member), Zhou, Z. (Project Member), Farjam, T. (Project Member), Moradpoor, I. (Project Member), Esquivias Canadas, A. (Project Member), Ingi, D. (Project Member), Klossner, S. (Project Member), Malhi, A. (Project Member), Vosough, S. (Project Member), Kajosaari, A. (Project Member), Pinho, P. (Project Member), Anashin, P. (Project Member), Hiltunen, P. (Project Member), Helenius, O. (Project Member), Ojala, P. (Project Member), Österbacka, M. (Project Member), Nummi, P. (Project Member), Ghanbari, H. (Project Member), Malik, A. (Project Member), Keyriläinen, T. (Project Member), Knapic, S. (Project Member), Olin, J. J. (Project Member), Ahdekivi, V. (Project Member), Fröhlich, K. (Project Member), Madhikermi, M. (Project Member), Farsaei, A. (Project Member), Hollmen, J. (Project Member), Ju, Y. (Project Member), Kangassalo, P. (Project Member), Liu, Z. (Project Member), Bhusal, P. (Project Member), Laguardia Tavares, P. (Project Member), Mäkelä, J. (Project Member), Kauppi, A. (Project Member), Saif, A. (Project Member), Khajavi Haghighat, S. (Project Member), Olkkonen, V. (Project Member), Pihlava, K. (Project Member), Tan, X. (Project Member), Doostmohammadian, M. (Project Member), Javanshir, N. (Project Member), Sipetas, C. (Project Member), Su, Y. (Project Member), Ainamo, A. (Project Member), Munilal Jain, K. (Project Member), Putta, A. (Project Member), Toivio, T. (Project Member), Apopei, I.-V. (Project Member), Jokisalo, J. (Project Member), Avci, C. (Project Member), Bayrak, M. (Project Member), Liaquat, M. (Project Member), Espinosa, A. (Project Member), Limnell, J. (Project Member), Marques de Carvalho Martins Canha, D. (Project Member), Ahmed, K. (Project Member), Pirilä, J. (Project Member), Tervo, S. (Project Member), Wallgren, K. (Project Member), Abolfazli, E. (Project Member), Bagheri Majdabadi, M. (Project Member), Bobrov, N. (Project Member), Huotari, M. (Project Member), Koivunen, T. (Project Member), Nzewi, L. (Project Member) & Kovanen, E. (Project Member)

      01/12/2019 → 31/05/2027

      Project: EU H2020 Framework program

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