Laser ignition of low-rank coal

B. P. Aduev; D. R. Nurmukhametov; N. V. Nelyubina; R. Yu. Kovalev; A. N. Zaostrovskii; Z. R. Ismagilov

doi:10.1134/S1990793116060154

Laser ignition of low-rank coal

Authors: Aduev B.P.¹, Nurmukhametov D.R.¹, Nelyubina N.V.¹, Kovalev R.Y.¹, Zaostrovskii A.N.¹, Ismagilov Z.R.¹
Affiliations:
1. Institute of Coal Chemistry and Chemical Materials Science, Siberian Branch
Issue: Vol 10, No 6 (2016)
Pages: 963-965
Section: Combustion, Explosion, and Shock Waves
URL: https://journal-vniispk.ru/1990-7931/article/view/198291
DOI: https://doi.org/10.1134/S1990793116060154
ID: 198291

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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).