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Estimation of the cavity volume in the gasification zone for underground coal gasification under different oxygen flow conditions

Author

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  • Su, Fa-qiang
  • He, Xiao-long
  • Dai, Meng-jia
  • Yang, Jun-nan
  • Hamanaka, Akihiro
  • Yu, Yi-he
  • Li, Wen
  • Li, Jiao-yuan

Abstract

In this study, the impact of oxygen flow rate on the cavity of the gasification zone was analyzed through two experiments using a coaxial hole model. The oxygen flow rate was controlled between 3 L/min and 5 L/min for experiment one and between 7.5 L/min and 15 L/min for experiment two. For the estimation of the cavity volume of the gasification zone in UCG, the stoichiometric method, the Delaunay triangulation approach, and the voxelization method were used. The actual gasification zone cavity volume change was obtained by dividing the coal consumption monitored by electronic mass balance by the apparent density of the coal. After analyzing and comparing the cavity volumes of the gasification zone obtained by the three estimation methods with the actual cavity volume of the gasification zone, the results showed that the stoichiometric method had an estimation error of less than 6.5 %. The Delaunay triangulation approach could reduce the estimation error for the convex cavity volume of the gasification zone to within 10 %. The voxelization method could reduce the estimation error for the cavity volume of the gasification zone to below 8 % and accurately describe the shape of the cavity.

Suggested Citation

  • Su, Fa-qiang & He, Xiao-long & Dai, Meng-jia & Yang, Jun-nan & Hamanaka, Akihiro & Yu, Yi-he & Li, Wen & Li, Jiao-yuan, 2023. "Estimation of the cavity volume in the gasification zone for underground coal gasification under different oxygen flow conditions," Energy, Elsevier, vol. 285(C).
    • Handle: RePEc:eee:energy:v:285:y:2023:i:c:s0360544223027032
    DOI: 10.1016/j.energy.2023.129309
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    References listed on IDEAS

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    1. Su, Fa-qiang & Itakura, Ken-ichi & Deguchi, Gota & Ohga, Koutarou, 2017. "Monitoring of coal fracturing in underground coal gasification by acoustic emission techniques," Applied Energy, Elsevier, vol. 189(C), pages 142-156.
    2. Olateju, Babatunde & Kumar, Amit, 2013. "Techno-economic assessment of hydrogen production from underground coal gasification (UCG) in Western Canada with carbon capture and sequestration (CCS) for upgrading bitumen from oil sands," Applied Energy, Elsevier, vol. 111(C), pages 428-440.
    3. Daggupati, Sateesh & Mandapati, Ramesh N. & Mahajani, Sanjay M. & Ganesh, Anuradda & Mathur, D.K. & Sharma, R.K. & Aghalayam, Preeti, 2010. "Laboratory studies on combustion cavity growth in lignite coal blocks in the context of underground coal gasification," Energy, Elsevier, vol. 35(6), pages 2374-2386.
    4. Blinderman, M.S. & Saulov, D.N. & Klimenko, A.Y., 2008. "Forward and reverse combustion linking in underground coal gasification," Energy, Elsevier, vol. 33(3), pages 446-454.
    5. Mohammadreza Shahbazi & Mehdi Najafi & Mohammad Fatehi Marji, 2019. "On the mitigating environmental aspects of a vertical well in underground coal gasification method," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 24(3), pages 373-398, March.
    6. Prabu, V. & Jayanti, S., 2011. "Simulation of cavity formation in underground coal gasification using bore hole combustion experiments," Energy, Elsevier, vol. 36(10), pages 5854-5864.
    7. Prabu, V. & Jayanti, S., 2012. "Underground coal-air gasification based solid oxide fuel cell system," Applied Energy, Elsevier, vol. 94(C), pages 406-414.
    8. Su, Fa-qiang & Hamanaka, Akihiro & Itakura, Ken-ichi & Zhang, Wenyan & Deguchi, Gota & Sato, Kohki & Takahashi, Kazuhiro & Kodama, Jun-ichi, 2018. "Monitoring and evaluation of simulated underground coal gasification in an ex-situ experimental artificial coal seam system," Applied Energy, Elsevier, vol. 223(C), pages 82-92.
    9. Md M. Khan & Joseph P. Mmbaga & Ahad S. Shirazi & Japan Trivedi & Qingzia Liu & Rajender Gupta, 2015. "Modelling Underground Coal Gasification—A Review," Energies, MDPI, vol. 8(11), pages 1-66, November.
    10. Cui, Yong & Liang, Jie & Wang, Zhangqing & Zhang, Xiaochun & Fan, Chenzi & Liang, Dongyu & Wang, Xuan, 2014. "Forward and reverse combustion gasification of coal with production of high-quality syngas in a simulated pilot system for in situ gasification," Applied Energy, Elsevier, vol. 131(C), pages 9-19.
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