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Ignition of particles of finely dispersed fuel mixtures based on coal and fine wood

Author

Listed:
  • Kuznetsov, G.V.
  • Zenkov, A.V.
  • Tolokolnikov, A.A.
  • Cherednik, I.V.
  • Yankovsky, S.A.

Abstract

The purpose of this work is to experimentally determine conditions and characteristics of floating particles ignition of fuel mixtures based on coal dust with characteristic sizes of less than 80 μm and fine wood (typical sizes up to 200 μm) at various mass concentrations of fuel components. The experiments were conducted in a medium heated to high temperatures of still air (from 600 °C to 1200 °C). Record of the processes of heating of the researched fuel mixture that is quite promising for heat power engineering, their subsequent ignition and combustion was performed by a high-speed video camera (image format - 1024 × 1024 pixels, frame rate - up to 105 per second). It has been established that increase in the proportion of relatively large particles (compared to coal) of the wood component in the fuel mixture does not significantly affect the values of ignition delay times of all investigated wood-coal mixtures based on two typical grades of coal (long-flame and lean).

Suggested Citation

  • Kuznetsov, G.V. & Zenkov, A.V. & Tolokolnikov, A.A. & Cherednik, I.V. & Yankovsky, S.A., 2021. "Ignition of particles of finely dispersed fuel mixtures based on coal and fine wood," Energy, Elsevier, vol. 220(C).
    • Handle: RePEc:eee:energy:v:220:y:2021:i:c:s0360544220328048
    DOI: 10.1016/j.energy.2020.119697
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    References listed on IDEAS

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    1. Riaza, J. & Gil, M.V. & Álvarez, L. & Pevida, C. & Pis, J.J. & Rubiera, F., 2012. "Oxy-fuel combustion of coal and biomass blends," Energy, Elsevier, vol. 41(1), pages 429-435.
    2. Hadi Karimi & Sandra Duni Ekşioğlu & Amin Khademi, 2018. "Analyzing tax incentives for producing renewable energy by biomass cofiring," IISE Transactions, Taylor & Francis Journals, vol. 50(4), pages 332-344, April.
    3. He, Jiaxin & Liu, Ying & Lin, Boqiang, 2018. "Should China support the development of biomass power generation?," Energy, Elsevier, vol. 163(C), pages 416-425.
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    1. Syrodoy, S.V. & Kuznetsov, G.V. & Gutareva, N. Yu & Nigay (Ivanova), N.A., 2022. "Mathematical modeling of the thermochemical processes of sequestration of SOx when burning the particles of the coal and wood mixture," Renewable Energy, Elsevier, vol. 185(C), pages 1392-1409.

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