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Long-term performance and life cycle assessment of energy piles in three different climatic conditions

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  • Sutman, Melis
  • Speranza, Gianluca
  • Ferrari, Alessio
  • Larrey-Lassalle, Pyrène
  • Laloui, Lyesse

Abstract

The main purpose behind the use of energy piles is to enable the exploitation of geothermal energy for meeting the heating/cooling demands of buildings in an efficient and environment-friendly manner. However, the long-term performance of energy piles in different climatic conditions, along with their actual environmental impacts, has not been fully assessed. In this paper, the results of a finite element model taking into consideration the heating and cooling demands of a reference building, and the intermittent operation of a ground source heat pump, are revealed to examine the long-term performance of energy piles. Furthermore, a life cycle assessment model is implemented to compare the environmental performance of energy piles and a group of conventional piles. The environmental enhancement provided by the adoption of a ground source heat pump system is quantified with respect to a conventional heating and cooling system. The obtained results show that (i) the energy pile system can meet the majority of the heating/cooling demands, except during the peak demands, (ii) the geothermal operation results in temperature fluctuations within the energy piles and the soil, (iii) the use of energy piles results in a significant reduction in environmental impacts in the majority of the examined cases.

Suggested Citation

  • Sutman, Melis & Speranza, Gianluca & Ferrari, Alessio & Larrey-Lassalle, Pyrène & Laloui, Lyesse, 2020. "Long-term performance and life cycle assessment of energy piles in three different climatic conditions," Renewable Energy, Elsevier, vol. 146(C), pages 1177-1191.
    • Handle: RePEc:eee:renene:v:146:y:2020:i:c:p:1177-1191
    DOI: 10.1016/j.renene.2019.07.035
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    Citations

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    Cited by:

    1. Ng, C.W.W. & Farivar, A. & Gomaa, S.M.M.H. & Shakeel, M. & Jafarzadeh, F., 2021. "Performance of elevated energy pile groups with different pile spacing in clay subjected to cyclic non-symmetrical thermal loading," Renewable Energy, Elsevier, vol. 172(C), pages 998-1012.
    2. Hanson, James L. & Onnen, Michael T. & Yeşiller, Nazlı & Kopp, Kevin B., 2022. "Heat energy potential of municipal solid waste landfills: Review of heat generation and assessment of vertical extraction systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 167(C).
    3. Heidari, Bahareh & Akbari Garakani, Amir & Mokhtari Jozani, Sahar & Hashemi Tari, Pooyan, 2022. "Energy piles under lateral loading: Analytical and numerical investigations," Renewable Energy, Elsevier, vol. 182(C), pages 172-191.
    4. Abubakar Kawuwa Sani & Rao Martand Singh, 2021. "Long-Term Thermal Performance of Group of Energy Piles in Unsaturated Soils under Cyclic Thermal Loading," Energies, MDPI, vol. 14(14), pages 1-28, July.
    5. Aresti, Lazaros & Christodoulides, Paul & Florides, Georgios A., 2021. "An investigation on the environmental impact of various Ground Heat Exchangers configurations," Renewable Energy, Elsevier, vol. 171(C), pages 592-605.
    6. Pei, Huafu & Song, Huaibo & Meng, Fanhua & Liu, Weiling, 2022. "Long-term thermomechanical displacement prediction of energy piles using machine learning techniques," Renewable Energy, Elsevier, vol. 195(C), pages 620-636.
    7. Pouria Abbasi & Masih Alavy & Pavel Belansky & Marc A. Rosen, 2024. "Assessment of Environmental Impacts of Thermal Caisson Geothermal Systems," Resources, MDPI, vol. 13(3), pages 1-22, March.
    8. Abdelazim Abbas Ahmed & Mohsen Assadi & Adib Kalantar & Tomasz Sliwa & Aneta Sapińska-Śliwa, 2022. "A Critical Review on the Use of Shallow Geothermal Energy Systems for Heating and Cooling Purposes," Energies, MDPI, vol. 15(12), pages 1-22, June.
    9. Li, Renrong & Kong, Gangqiang & Sun, Guangchao & Zhou, Yang & Yang, Qing, 2021. "Thermomechanical characteristics of an energy pile-raft foundation under heating operations," Renewable Energy, Elsevier, vol. 175(C), pages 580-592.

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