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

Autor: Roman I. Taburchinov, Arseniy O. Chulkov, Roman I. Egorov, P.P. Tkachenko
Rok vydání: 2020
Předmět:
Zdroj: Fuel. 263:116767
ISSN: 0016-2361
DOI: 10.1016/j.fuel.2019.116767
Popis: 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 120 μ m to 270 - 280 μ m 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 - 200 μ m ignite inside the observed range of distances from the nozzle. The particles bigger than 50 μ m 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.
Databáze: OpenAIRE