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Thermo-mechanical behavior of cast-in-place energy piles

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  • Sung, Chihun
  • Park, Sangwoo
  • Lee, Seokjae
  • Oh, Kwanggeun
  • Choi, Hangseok

Abstract

An energy pile induces heat exchange with the ground formation by circulating heat carrier fluid through a heat exchange pipe, which is encased in pile foundation. During heat exchange, temperature variation in energy pile generates thermally-induced stress due to the different thermo-mechanical behavior between the pile and surrounding ground, and the restriction of pile deformation. A series of full-scale field tests was performed to identify the thermo-mechanical behavior of a cast-in-place energy pile equipped with 5-pair-parallel U-type heat exchange pipe. During the field investigation, each cooling and heating test lasted for 30 days, including a 15-day operating period and 15-day resting period, and the thermal stress generated in the energy pile was monitored. The maximum thermal stress was evaluated to be 2.6 MPa in the cooling test, which is about 10% of the design compressive strength of concrete. In addition, a finite element (FE) numerical model was developed to simulate the thermo-mechanical behavior of the energy pile. In the numerical analysis, relevant boundary conditions and interface model were determined by comparing with the field measurement. Finally, a parametric study was performed to estimate the thermal stress and deformation of a cast-in-place energy pile for various ground conditions.

Suggested Citation

  • Sung, Chihun & Park, Sangwoo & Lee, Seokjae & Oh, Kwanggeun & Choi, Hangseok, 2018. "Thermo-mechanical behavior of cast-in-place energy piles," Energy, Elsevier, vol. 161(C), pages 920-938.
    • Handle: RePEc:eee:energy:v:161:y:2018:i:c:p:920-938
    DOI: 10.1016/j.energy.2018.07.079
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    References listed on IDEAS

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    1. de Moel, Monique & Bach, Peter M. & Bouazza, Abdelmalek & Singh, Rao M. & Sun, JingLiang O., 2010. "Technological advances and applications of geothermal energy pile foundations and their feasibility in Australia," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(9), pages 2683-2696, December.
    2. Bandos, Tatyana V. & Campos-Celador, Álvaro & López-González, Luis M. & Sala-Lizarraga, José M., 2014. "Finite cylinder-source model for energy pile heat exchangers: Effects of thermal storage and vertical temperature variations," Energy, Elsevier, vol. 78(C), pages 639-648.
    3. Gao, Jun & Zhang, Xu & Liu, Jun & Li, Kuishan & Yang, Jie, 2008. "Numerical and experimental assessment of thermal performance of vertical energy piles: An application," Applied Energy, Elsevier, vol. 85(10), pages 901-910, October.
    4. Park, Sangwoo & Lee, Dongseop & Lee, Seokjae & Chauchois, Alexis & Choi, Hangseok, 2017. "Experimental and numerical analysis on thermal performance of large-diameter cast-in-place energy pile constructed in soft ground," Energy, Elsevier, vol. 118(C), pages 297-311.
    5. Park, Sangwoo & Lee, Dongseop & Choi, Hyun-Jun & Jung, Kyoungsik & Choi, Hangseok, 2015. "Relative constructability and thermal performance of cast-in-place concrete energy pile: Coil-type GHEX (ground heat exchanger)," Energy, Elsevier, vol. 81(C), pages 56-66.
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    Cited by:

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    2. Ai, Zhi Yong & Ye, Jia Ming & Zhao, Yong Zhi, 2022. "The performance analysis of energy piles in cross-anisotropic soils," Energy, Elsevier, vol. 255(C).
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    5. Akbari Garakani, Amir & Mokhtari Jozani, Sahar & Hashemi Tari, Pooyan & Heidari, Bahareh, 2022. "Effects of heat exchange fluid characteristics and pipe configuration on the ultimate bearing capacity of energy piles," Energy, Elsevier, vol. 248(C).
    6. Yang, Weibo & Sun, Taofu & Zhang, Chaoyang & Wang, Feng, 2023. "Experimental and numerical investigations of thermo-mechanical behaviour of energy pile under cyclic temperature loads," Energy, Elsevier, vol. 267(C).
    7. Park, Sangwoo & Lee, Seokjae & Sung, Chihun & Choi, Hangseok, 2021. "Applicability evaluation of cast-in-place energy piles based on two-year heating and cooling operation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 143(C).
    8. Lee, Seokjae & Park, Sangwoo & Kang, Minkyu & Oh, Kwanggeun & Choi, Hangseok, 2022. "Effect of tube-in-tube configuration on thermal performance of coaxial-type ground heat exchanger," Renewable Energy, Elsevier, vol. 197(C), pages 518-527.
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    10. Ai, Zhi Yong & Ye, Jia Ming, 2023. "Thermo-mechanical analysis of pipe energy piles in layered cross-isotropic soils," Energy, Elsevier, vol. 277(C).

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