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Determining optimal designs for conventional and geothermal energy piles

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  • Jelušič, Primož
  • Žlender, Bojan

Abstract

The article presents a comparative analysis of an optimal design for conventional and geothermal energy piles, based on mixed-integer and non-linear programming (MINLP) optimizations. To complete this analysis, a MINLP optimization model OPTPILE was constructed. The model is based on structure production costs, while the piles are made of more than one material. It was subjected to geotechnical designs, structural resistance and settlement constraints that satisfy the requirements of the ultimate and serviceability limit states of the Eurocode specifications and recommendations for design and analysis of geothermal energy piles. The optimal design of a conventional and geothermal energy pile was investigated for various soil and load conditions. A comparative analysis of MINLP optimizations were performed over a wide range of alternative scenarios: different vertical loads on the pile, alternatives of discrete cross-sections as well as different Young's moduli of the soil. Based on the calculated results, a recommended optimal design for a conventional pile and a geothermal energy pile were developed.

Suggested Citation

  • Jelušič, Primož & Žlender, Bojan, 2020. "Determining optimal designs for conventional and geothermal energy piles," Renewable Energy, Elsevier, vol. 147(P2), pages 2633-2642.
    • Handle: RePEc:eee:renene:v:147:y:2020:i:p2:p:2633-2642
    DOI: 10.1016/j.renene.2018.08.016
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    References listed on IDEAS

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    1. Han, Chanjuan & Yu, Xiong (Bill), 2018. "An innovative energy pile technology to expand the viability of geothermal bridge deck snow melting for different United States regions: Computational assisted feasibility analyses," Renewable Energy, Elsevier, vol. 123(C), pages 417-427.
    2. Jalaluddin, & Miyara, Akio & Tsubaki, Koutaro & Inoue, Shuntaro & Yoshida, Kentaro, 2011. "Experimental study of several types of ground heat exchanger using a steel pile foundation," Renewable Energy, Elsevier, vol. 36(2), pages 764-771.
    3. Ghasemi-Fare, Omid & Basu, Prasenjit, 2016. "Predictive assessment of heat exchange performance of geothermal piles," Renewable Energy, Elsevier, vol. 86(C), pages 1178-1196.
    4. Han, Chanjuan & Yu, Xiong (Bill), 2017. "Feasibility of geothermal heat exchanger pile-based bridge deck snow melting system: A simulation based analysis," Renewable Energy, Elsevier, vol. 101(C), pages 214-224.
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    Cited by:

    1. Primož Jelušič, 2024. "Enhancing Sustainability of Building Foundations with Efficient Open-End Pile Optimization," Sustainability, MDPI, vol. 16(16), pages 1-15, August.
    2. 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.
    3. Shirgir, Sina & Shamsaddinlou, Amir & Zare, Reza Najafi & Zehtabiyan, Sorour & Bonab, Masoud Hajialilue, 2023. "An efficient double-loop reliability-based optimization with metaheuristic algorithms to design soil nail walls under uncertain condition," Reliability Engineering and System Safety, Elsevier, vol. 232(C).
    4. Primož Jelušič & Tomaž Žula, 2023. "Sustainable Design of Circular Reinforced Concrete Column Sections via Multi-Objective Optimization," Sustainability, MDPI, vol. 15(15), pages 1-19, July.

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