Abstract:
In this study, we measured the spectral-kinetic characteristics of ignition of dustlike (pulverized) coal particles with a particle size of ⩽ 100 μm using an yttrium-aluminum garnet laser with an admixture of neodymium operating in the free-running mode (120 μs). We discovered three stages of the process, each of which has a threshold character. During the laser pulse in the energy density range of 0.3–1.5 J/cm2, a rapid heating of the sample surface to 3000 K occurs due to the absorption of laser energy and initiation of a chemical reaction in the coal particles. In the energy density range of 1.6–2.1 J/cm2, the yield and ignition of volatile matter above the sample surface are observed in the time interval of 0.5–2 ms. In the emission spectra of the flame, we are able to distinguish bands associated with the combustion of volatile matter including the CO flame and the emission of excited H2O and H2 molecules. At H> 2 J/cm2, ignition and burning of the coke residue takes place in a time interval of 10–100 ms. Its emission spectrum corresponds to the emission spectrum of a black body at 1800 K.
Citation:
B. P. Aduev, D. R. Nurmuhametov, R. Yu. Kovalyov, Ya. V. Kraft, A. N. Zaostrovskii, A. V. Gudilin, Z. R. Ismagilov, “Spectral-kinetic characteristics of laser ignition of pulverized brown coal”, Optics and Spectroscopy, 125:2 (2018), 277–283; Optics and Spectroscopy, 125:2 (2018), 293–299
\Bibitem{AduNurKov18}
\by B.~P.~Aduev, D.~R.~Nurmuhametov, R.~Yu.~Kovalyov, Ya.~V.~Kraft, A.~N.~Zaostrovskii, A.~V.~Gudilin, Z.~R.~Ismagilov
\paper Spectral-kinetic characteristics of laser ignition of pulverized brown coal
\jour Optics and Spectroscopy
\yr 2018
\vol 125
\issue 2
\pages 277--283
\mathnet{http://mi.mathnet.ru/os944}
\crossref{https://doi.org/10.21883/OS.2018.08.46373.29-18}
\elib{https://elibrary.ru/item.asp?id=35270076}
\transl
\jour Optics and Spectroscopy
\yr 2018
\vol 125
\issue 2
\pages 293--299
\crossref{https://doi.org/10.1134/S0030400X18080039}
Linking options:
https://www.mathnet.ru/eng/os944
https://www.mathnet.ru/eng/os/v125/i2/p277
This publication is cited in the following 23 articles:
B. P. Aduev, Y. V. Kraft, D. R. Nurmukhametov, Z. R. Ismagilov, “A study on the ignition of different metamorphic grade coal particles by microsecond laser pulses in the free-running mode”, Combustion Science and Technology, 196:2 (2024), 274
B. P. Aduev, D. R. Nurmukhametov, Ya. V. Kraft, Z. R. Ismagilov, “Ignition of Coal Microparticles by Laser Pulses of the Second Harmonic of a Neodymium Laser in the Q-Switched Regime”, Russ. J. Phys. Chem. B, 18:2 (2024), 468
B. P. Aduyev, G. M. Belokurov, I. Yu. Liskov, D. R. Nurmukhametov, “Ignition of Anthracite Microparticles by Continuous Wave Laser Radiation with Wavelengths of 450 and 808 nm”, Solid Fuel Chem., 58:3 (2024), 203
B. P. Aduev, D. R. Nurmukhametov, Ya. V. Kraft, Z. R. Ismagilov, “Ignition of Coal Microparticles by Laser Pulses of The Second Harmonic of a Ndodymium Laser in the Q-Switched Regime”, Himičeskaâ fizika, 43:3 (2024), 55
B. P. Aduyev, G. M. Belokurov, I. Y. Liskov, D. R. Nurmukhametov, “Ignition of anthracite microparticles by continuous laser radiation with wavelengths of 450 and 808 nm”, Himiâ tverdogo topliva, 2024, no. 3, 40
Chengjun Li, Zhimin Lu, Jinzheng Chen, Ziyu Yu, Qi Yang, Huaiqing Qin, Xiwen Xing, Qingxiang Ma, Shunchun Yao, “Determination of alkali metal elements in solid biomass fuel by laser-induced breakdown spectroscopy: analysis and reduction of chemical matrix effects”, Analytica Chimica Acta, 2024, 343568
B. P. Aduev, D. R. Nurmukhametov, N. V. Nelyubina, I. Yu. Liskov, V. D. Volkov, “Laser Ignition of Lignite Microparticles with Different Ash Content”, Coke Chem., 67:12 (2024), 695
Bull. Lebedev Physics Institute, 50:suppl. 9 (2023), S1050–S1058
B. P. Aduev, G. M. Belokurov, I. Yu. Liskov, Z. R. Ismagilov, “Ignition of Coals with Continuous-Wave Lasers at Wavelengths of 450 and 808 nm”, Khimiya tverdogo topliva, 2023, no. 4, 31
B. P. Aduev, G. M. Belokurov, I. Yu. Liskov, Z. R. Ismagilov, “Ignition of Coals with Continuous-Wave Lasers at Wavelengths of 450 and 808 nm”, Solid Fuel Chem., 57:3 (2023), 170
B. P. Aduev, D. R. Nurmukhametov, I. Yu. Liskov, N. V. Nelyubina, V. D. Volkov, Ya. V. Kraft, Z. R. Ismagilov, “Characteristics of the Laser Ignition of Brown Coal Microparticles Depending on Their Sizes”, Solid Fuel Chem., 56:4 (2022), 237
B. P. Aduev, D. R. Nurmuhametov, Ya. V. Kraft, Z. R. Ismagilov, “Pulsed laser ignition of coal microparticles”, Combustion, Explosion and Shock Waves, 58:5 (2022), 610–619
B.P. Aduev, G.M. Belokurov, I.Yu. Liskov, D.R. Nurmukhametov, Z.R. Ismagilov, “Ignition of Low-Metamorphized Coal with Continuous Lasers at Wavelengths 450 nm and 808 nm”, Eurasian Chem. Tech. J., 24:2 (2022), 91
B. P. Aduev, D. R. Nurmukhametov, Ya. V. Kraft, Z. R. Ismagilov, “Initial Stages of The Ignition of Coal Microparticles of Different Grades by Laser Pulses”, Russ. J. Phys. Chem. B, 16:2 (2022), 227
Ya V Kraft, B P Aduev, D R Nurmukhametov, Z R Ismagilov, “Study of the kinetic dependences of the glow and determination of the threshold characteristics of ignition of coals with different stages of metamorphism under the action of microsecond laser pulses”, J. Phys.: Conf. Ser., 1749:1 (2021), 012016
Ziyu Yu, Shunchun Yao, Yuan Jiang, Weize Chen, Shuixiu Xu, Huaiqing Qin, Zhimin Lu, Jidong Lu, “Comparison of the matrix effect in laser induced breakdown spectroscopy analysis of coal particle flow and coal pellets”, J. Anal. At. Spectrom., 36:11 (2021), 2473
B. P. Aduev, D. R. Nurmukhametov, N. V. Nelyubina, Ya. V. Kraft, Z. R. Ismagilov, “Effect of Neodymium Laser Pulses of Nanosecond Duration on Brown Coal”, J Appl Spectrosc, 88:4 (2021), 761
B. P. Aduev, D. R. Nurmukhametov, G. M. Belokurov, Ya. V. Kraft, Z. R. Ismagilov, “Ignition of Coals by Laser Pulses in the Free-Running Mode”, Solid Fuel Chem., 55:3 (2021), 194
Ya.V. Kraft, B. P. Aduev, D.R. Nurmukhametov, Z. R. Ismagilov, “Glow of a coal flame during exposure to microsecond laser pulses with different energy densities”, J. Phys.: Conf. Ser., 1749:1 (2021), 012017
B. P. Aduev, D. R. Nurmuhametov, Ya. V. Kraft, Z. R. Ismagilov, “Ignition of different metamorphic grade coals by free-running laser pulses”, Optics and Spectroscopy, 128:3 (2020), 429–435
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