Influence of the degree of coal metamorphism on characteristics and conditions of ignition of coal-water fuel drops; Thermophysics and Aeromechanics; Vol. 25, iss. 5

Influence of the degree of coal metamorphism on characteristics and conditions of ignition of coal-water fuel drops

Bibliographic Details
Parent link:Thermophysics and Aeromechanics
Vol. 25, iss. 5.— 2018.— [P. 773–788]
Main Author: Salomatov V. V. Vladimir Vasiljevich
Corporate Author: Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова)
Other Authors: Kuznetsov G. V. Geny Vladimirovich, Syrodoy S. V. Semen Vladimirovich
Summary:Title screen
The results of theoretical studies of the processes of ignition of water-coal fuel droplets based on brown coal, semi-anthracite, anthracite, long-flame and fat coal under the conditions corresponding to the combustion spaces of typical modern boilers are presented. The influence of the degree of metamorphism (structural-molecular transformation of organic matter of coal) and concentration of the organic component of the base fuel (coal) on the conditions of ignition of water-coal fuel particles is analyzed. It is determined that the type and grade of coal have a significant impact on the dynamics of fuel ignition. It was shown that in the case of ignition of coal-water fuel made of mineral coal, the ignition of particles based on semi-anthracite and anthracite is the fastest (by 20%), and ignition of coal-water fuels of fat coal is the slowest. The latter is explained by the lower heat capacity and thermal effect of pyrolysis of this fuel, as well as the relatively high heat conductivity of anthracite coal as compared to fat coal. It has been determined that drops of coal-water fuel made of brown coal ignite substantially (2 times) faster than drops prepared from coal of coal-water particles. This is due to the high content of volatiles in the composition of brown coal.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2018
Subjects:
электронный ресурс
труды учёных ТПУ
водоугольное топливо
метаморфизм
воспламенение
диффузия
продукты пиролиза
Online Access:https://doi.org/10.1134/S0869864318050141
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=659115

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