Laser ignition of low-rank coal |
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| Authors: | B P Aduev D R Nurmukhametov N V Nelyubina R Yu Kovalev A N Zaostrovskii Z R Ismagilov |
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| Institution: | 1.Institute of Coal Chemistry and Chemical Materials Science, Siberian Branch,Russian Academy of Sciences,Kemerovo,Russia |
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| Abstract: | The measured thresholds (H cr) and kinetic characteristics of the ignition of the volatile substances and the coke residue of low-rank coal under the action of the pulses of a neodymium laser (1064 nm, 120 μs) are reported here. The ignition of volatile substances was observed in microsecond (H cr = 0.3 J/cm2) and millisecond time intervals (H cr = 1.2 J/cm2). The combustion of the coke residue occurred in a time interval of 30–100 ms (H cr = 2.6 J/cm2). |
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