The propagation and ignition of the finely dispersed coal-water aerosol

Roman I. Egorov, Pavel P. Tkachenko, Roman I. Taburchinov, Arseniy O. Chulkov

Research output: Contribution to journalArticle

Abstract

Transformation of the fine aerosol of coal-water slurry during the propagation in air was investigated experimentally. It was shown that most probable size of aerosol particles changes from 120μm to 270-280μm during the free space flight for 0.4 m together with deceleration from 800 mm/s to 550 mm/s. The low temperature ignition of such aerosol on the discussed propagation way was analysed using the simulation. It was shown that particles with sizes 50-200μm ignite inside the observed range of distances from the nozzle. The particles bigger than 50μm allows high enough heat production within the 1–1.5 m of the flight and, thus, the observed fine aerosol is fully appropriate for industrial purposes.

Original languageEnglish
Article number116767
JournalFuel
Volume263
DOIs
Publication statusPublished - 1 Mar 2020

Fingerprint

Coal
Aerosols
Ignition
Water
Deceleration
Space flight
Particles (particulate matter)
Nozzles
Air
Temperature

Keywords

  • Aerosol
  • Coal-water slurry
  • Evaporation
  • Ignition simulation
  • Propagation
  • Size distribution
  • Velocity distribution

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

Cite this

The propagation and ignition of the finely dispersed coal-water aerosol. / Egorov, Roman I.; Tkachenko, Pavel P.; Taburchinov, Roman I.; Chulkov, Arseniy O.

In: Fuel, Vol. 263, 116767, 01.03.2020.

Research output: Contribution to journalArticle

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AU - Chulkov, Arseniy O.

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AB - Transformation of the fine aerosol of coal-water slurry during the propagation in air was investigated experimentally. It was shown that most probable size of aerosol particles changes from 120μm to 270-280μm during the free space flight for 0.4 m together with deceleration from 800 mm/s to 550 mm/s. The low temperature ignition of such aerosol on the discussed propagation way was analysed using the simulation. It was shown that particles with sizes 50-200μm ignite inside the observed range of distances from the nozzle. The particles bigger than 50μm allows high enough heat production within the 1–1.5 m of the flight and, thus, the observed fine aerosol is fully appropriate for industrial purposes.

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KW - Velocity distribution

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