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Numerical investigation and optimization on dynamic power generation performance of enhanced geothermal system

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  • Meng, Nan
  • Gao, Xiang
  • Wang, Zeyu
  • Li, Tailu

Abstract

The Enhanced geothermal system (EGS) is a crucial technology for the development and utilization of hot dry rock (HDR). However, current research typically overlooks the strong coupling characteristics of fracture seepage, wellbore transport, and thermoelectric conversion, leading to a lack of precision in describing the dynamic operational performance of EGS throughout its entire lifecycle. A dynamic numerical model of evaporator and condenser is established by the moving boundary (MB) method. Subsequently, the dynamic power generation process is integrated with a coupled thermal-hydraulic-mechanical (THM) model of the fractured reservoir, proposing a methodology for calculating the dynamic performance of EGS throughout its lifecycle.

Suggested Citation

  • Meng, Nan & Gao, Xiang & Wang, Zeyu & Li, Tailu, 2024. "Numerical investigation and optimization on dynamic power generation performance of enhanced geothermal system," Energy, Elsevier, vol. 288(C).
    • Handle: RePEc:eee:energy:v:288:y:2024:i:c:s0360544223032954
    DOI: 10.1016/j.energy.2023.129901
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    References listed on IDEAS

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