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Low-temperature ignition of droplets of suspension organic water–carbon fuels

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Abstract

The conditions and integral characteristics of stable low-temperature ignition of droplets of suspension organic water–coal fuels are established by using the means of high-speed video-detection. The oxidizer temperature for these conditions varies in the range of 600–900 K (much below the temperatures in furnace chambers of modern power installations exceeding 1200 K). The velocity of the oxidizer-flow motion varies from 0.5 to 5 m/s, and the sizes (conditional radii) of droplets vary from 0.5 to 1.5 mm. The times of initiation of burning under conditions of low-temperature heating and the duration of the complete combustion of droplets of the corresponding compositions of organic water-coal fuels are determined. The necessary and sufficient conditions of stable ignition are singled out for promising organic water–coal fuels.

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Authors and Affiliations

  1. Kutateladze Institute of Thermal Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    V. E. Nakoryakov

  2. National Research Tomsk Polytechnic University, Tomsk, 634034, Russia

    D. O. Glushkov, G. V. Kuznetsov & P. A. Strizhak

Authors
  1. V. E. Nakoryakov
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  2. D. O. Glushkov
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  3. G. V. Kuznetsov
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  4. P. A. Strizhak
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Corresponding author

Correspondence to V. E. Nakoryakov.

Additional information

Original Russian Text © V.E. Nakoryakov, D.O. Glushkov, G.V. Kuznetsov, P.A. Strizhak, 2016, published in Doklady Akademii Nauk, 2016, Vol. 469, No. 2, pp. 167–172.

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Nakoryakov, V.E., Glushkov, D.O., Kuznetsov, G.V. et al. Low-temperature ignition of droplets of suspension organic water–carbon fuels. Dokl. Phys. 61, 321–326 (2016). https://doi.org/10.1134/S1028335816070089

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  • DOI: https://doi.org/10.1134/S1028335816070089

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