Ignition of a coal particle on a heated surface

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

With the use of high-speed (to 6 × 105 frames per second) video recording facilities, the following three physicochemical transformation regimes were recognized on the induction heating of the single particles (4–6 mm in size) of D coal on a steel plate (at a temperature of no higher than 1000 K): thermal decomposition without ignition, smoldering, and ignition. The limiting (minimum) values of heat source temperatures necessary and sufficient for the initiation of combustion of coal particles were established.The effect of particle sizes on the integral characteristics of the test process was found. The particle-size dependence of the time of heating of a natural solid fuel particle to the intense development of an exothermic reaction was obtained. It was found that the characteristic times of the initiation of the ignition and smoldering regimes were no longer than 10 and 20 s, respectively, with variations in coal particle size.

Original languageEnglish
Pages (from-to)213-219
Number of pages7
JournalSolid Fuel Chemistry
Volume50
Issue number4
DOIs
Publication statusPublished - 1 Jul 2016

Fingerprint

Coal
Ignition
Particle size
Video recording
Exothermic reactions
Induction heating
Steel
Pyrolysis
Heating
Temperature

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology

Cite this

Ignition of a coal particle on a heated surface. / Glushkov, D. O.; Kuznetsov, G. V.; Strizhak, P. A.; Sharypov, O. V.

In: Solid Fuel Chemistry, Vol. 50, No. 4, 01.07.2016, p. 213-219.

Research output: Contribution to journalArticle

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