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Determination and Fire Analysis of Gob Characteristics Using CFD

Author

Listed:
  • Florencio Fernández-Alaiz

    (AITEMINLE SL, Arriba, 31, Villanueva Del Árbol (Villaquilambre), 24197 León, Spain)

  • Ana Maria Castañón

    (Department of Mining, Topography and Structures, University of León (ESTIM), Campus de Vegazana, s.n, 24071 León, Spain)

  • Fernando Gómez-Fernández

    (Department of Mining, Topography and Structures, University of León (ESTIM), Campus de Vegazana, s.n, 24071 León, Spain)

  • Antonio Bernardo-Sánchez

    (Department of Mining, Topography and Structures, University of León (ESTIM), Campus de Vegazana, s.n, 24071 León, Spain)

  • Marc Bascompta

    (Department of Mining, Industrial and ICT Engineering, Polytechnic University of Catalonia (UPC), Manresa, Av. Bases de Manresa, 61-73, 08242 Barcelona, Spain)

Abstract

A laboratory-scale analysis using coal from an underground mine was carried out, emulating a mixture from the gob area in an actual mine, consisting of waste, coal, and free space for the flow of air. Experimental tests and computational fluid dynamics modelling were done to define and verify the behavior of the collapsed region in a time-dependent analysis. In addition, the characteristics of coal were defined, regarding the self-combustion, combustion rate, and pollutants generated in each stage of the fire. The results achieved are useful for determining the behavior of the collapsed area in full-scale conditions and to provide valuable information to study different scenarios of a potential fire in a real sublevel coal mine regarding how the heat is spread in the gob and how pollutants are generated.

Suggested Citation

  • Florencio Fernández-Alaiz & Ana Maria Castañón & Fernando Gómez-Fernández & Antonio Bernardo-Sánchez & Marc Bascompta, 2020. "Determination and Fire Analysis of Gob Characteristics Using CFD," Energies, MDPI, vol. 13(20), pages 1-11, October.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:20:p:5274-:d:426195
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    References listed on IDEAS

    as
    1. Weidong Pan & Shaopeng Zhang & Yi Liu, 2020. "Safe and Efficient Coal Mining Below the Goaf: A Case Study," Energies, MDPI, vol. 13(4), pages 1-15, February.
    2. Yuguo Wu & Yulong Zhang & Jie Wang & Xiaoyu Zhang & Junfeng Wang & Chunshan Zhou, 2020. "Study on the Effect of Extraneous Moisture on the Spontaneous Combustion of Coal and Its Mechanism of Action," Energies, MDPI, vol. 13(8), pages 1-17, April.
    3. Florencio Fernánez-Alaiz & Ana Maria Castañón & Fernando Gómez-Fernández & Antonio Bernardo-Sánchez & Marc Bascompta, 2020. "Analysis of the Fire Propagation in a Sublevel Coal Mine," Energies, MDPI, vol. 13(14), pages 1-16, July.
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    Cited by:

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    2. Adam P. Niewiadomski & Grzegorz Pach & Zenon Różański & Paweł Wrona & Dariusz Musioł & Pavel Zapletal & Marian Sofranko, 2022. "Influence of the Auxiliary Air-Duct Outlet and the Brattice Location on the Methane Hazard—Numerical Simulations," Energies, MDPI, vol. 15(10), pages 1-14, May.

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