Minghan Xu

Ph.D. (he/him)



Thermal and hydraulic analysis of a novel double-pipe geothermal heat exchanger with a controlled fractured zone at the well bottom


Journal article


Putra H Agson-Gani, Ahmad F Zueter, Minghan Xu, Seyed Ali Ghoreishi-Madiseh, Jundika C Kurnia, Agus P Sasmito
Applied Energy, vol. 310, Elsevier, 2022, p. 118407


Cite

Cite

APA   Click to copy
Agson-Gani, P. H., Zueter, A. F., Xu, M., Ghoreishi-Madiseh, S. A., Kurnia, J. C., & Sasmito, A. P. (2022). Thermal and hydraulic analysis of a novel double-pipe geothermal heat exchanger with a controlled fractured zone at the well bottom. Applied Energy, 310, 118407. https://doi.org/10.1016/j.apenergy.2021.118407


Chicago/Turabian   Click to copy
Agson-Gani, Putra H, Ahmad F Zueter, Minghan Xu, Seyed Ali Ghoreishi-Madiseh, Jundika C Kurnia, and Agus P Sasmito. “Thermal and Hydraulic Analysis of a Novel Double-Pipe Geothermal Heat Exchanger with a Controlled Fractured Zone at the Well Bottom.” Applied Energy 310 (2022): 118407.


MLA   Click to copy
Agson-Gani, Putra H., et al. “Thermal and Hydraulic Analysis of a Novel Double-Pipe Geothermal Heat Exchanger with a Controlled Fractured Zone at the Well Bottom.” Applied Energy, vol. 310, Elsevier, 2022, p. 118407, doi:10.1016/j.apenergy.2021.118407.


BibTeX   Click to copy

@article{agson-gani2022a,
  title = {Thermal and hydraulic analysis of a novel double-pipe geothermal heat exchanger with a controlled fractured zone at the well bottom},
  year = {2022},
  journal = {Applied Energy},
  pages = {118407},
  publisher = {Elsevier},
  volume = {310},
  doi = {10.1016/j.apenergy.2021.118407},
  author = {Agson-Gani, Putra H and Zueter, Ahmad F and Xu, Minghan and Ghoreishi-Madiseh, Seyed Ali and Kurnia, Jundika C and Sasmito, Agus P}
}

  • This study introduces a novel concept of semi closed-loop double-pipe heat exchangers with a controlled fractured zone at the well bottom to improve the geothermal heat extraction. 
  • The proposed model is benefitted from the reliable design of a double-pipe and the higher heat extraction rate of open geothermal systems.
  • A conjugate mathematical model is developed and validated to simulate geothermal heat extraction, while the fractured zone is calculated by implementing the fractal theory. 
  • The results suggest that the proposed model can significantly improve the heat extraction rate and thermal power by up to more than 90%, with an additional 28% of pumping power. 
  • Several operating parameters of the fractured zone are also evaluated, indicating that the increase of the heat extraction rate compared to the closed-loop model was within the range of 48%–144% based on its design. 

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