Numerical research of heat and mass transfer during low-temperature ignition of a coal particle

Abstract

Numerical researches have been carried out to study the influence of air flow temperature and a fossil fuel particle rate on sufficient conditions of ignition in a "coal particle - air" system. Developed mathematical model takes into account interconnected processes of heat transfer in a coal particle and gas area, thermal decomposition of organic material, diffusion and gas-phase oxidation of volatiles, heating of a coke (carbon) and its heterogeneous ignition. The effect of low-temperature (about 600 K) ignition for a single coal particle is impossible even at variation of its rate (radius) from 0.05 mm to 0.5 mm. Nevertheless this process is possible for group of particles (two, three, et al.) situated at close-range from each other. The physical aspects of the problem are discussed.

Original language	English
Pages (from-to)	285-294
Number of pages	10
Journal	Thermal Science
Volume	19
Issue number	1
DOIs	https://doi.org/10.2298/TSCI140521107G
Publication status	Published - 2015

Keywords

Coal particle
Heat and mass transfer
Ignition
Low-temperature air flow
Numerical research

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment

Access to Document

10.2298/TSCI140521107G

Fingerprint Dive into the research topics of 'Numerical research of heat and mass transfer during low-temperature ignition of a coal particle'. Together they form a unique fingerprint.

Cite this

Glushkov, D. O., Strizhak, P. A., & Vysokomornaya, O. V. (2015). Numerical research of heat and mass transfer during low-temperature ignition of a coal particle. Thermal Science, 19(1), 285-294. https://doi.org/10.2298/TSCI140521107G

@article{fd41a03a4c04423891dbacf96aa0ed19,

title = "Numerical research of heat and mass transfer during low-temperature ignition of a coal particle",

abstract = "Numerical researches have been carried out to study the influence of air flow temperature and a fossil fuel particle rate on sufficient conditions of ignition in a {"}coal particle - air{"} system. Developed mathematical model takes into account interconnected processes of heat transfer in a coal particle and gas area, thermal decomposition of organic material, diffusion and gas-phase oxidation of volatiles, heating of a coke (carbon) and its heterogeneous ignition. The effect of low-temperature (about 600 K) ignition for a single coal particle is impossible even at variation of its rate (radius) from 0.05 mm to 0.5 mm. Nevertheless this process is possible for group of particles (two, three, et al.) situated at close-range from each other. The physical aspects of the problem are discussed.",

keywords = "Coal particle, Heat and mass transfer, Ignition, Low-temperature air flow, Numerical research",

author = "Glushkov, {Dmitrii O.} and Strizhak, {Pavel A.} and Vysokomornaya, {Olga V.}",

year = "2015",

doi = "10.2298/TSCI140521107G",

language = "English",

volume = "19",

pages = "285--294",

journal = "Thermal Science",

issn = "0354-9836",

publisher = "Vinca Inst Nuclear Sci",

number = "1",

}

TY - JOUR

T1 - Numerical research of heat and mass transfer during low-temperature ignition of a coal particle

AU - Glushkov, Dmitrii O.

AU - Strizhak, Pavel A.

AU - Vysokomornaya, Olga V.

PY - 2015

Y1 - 2015

N2 - Numerical researches have been carried out to study the influence of air flow temperature and a fossil fuel particle rate on sufficient conditions of ignition in a "coal particle - air" system. Developed mathematical model takes into account interconnected processes of heat transfer in a coal particle and gas area, thermal decomposition of organic material, diffusion and gas-phase oxidation of volatiles, heating of a coke (carbon) and its heterogeneous ignition. The effect of low-temperature (about 600 K) ignition for a single coal particle is impossible even at variation of its rate (radius) from 0.05 mm to 0.5 mm. Nevertheless this process is possible for group of particles (two, three, et al.) situated at close-range from each other. The physical aspects of the problem are discussed.

AB - Numerical researches have been carried out to study the influence of air flow temperature and a fossil fuel particle rate on sufficient conditions of ignition in a "coal particle - air" system. Developed mathematical model takes into account interconnected processes of heat transfer in a coal particle and gas area, thermal decomposition of organic material, diffusion and gas-phase oxidation of volatiles, heating of a coke (carbon) and its heterogeneous ignition. The effect of low-temperature (about 600 K) ignition for a single coal particle is impossible even at variation of its rate (radius) from 0.05 mm to 0.5 mm. Nevertheless this process is possible for group of particles (two, three, et al.) situated at close-range from each other. The physical aspects of the problem are discussed.

KW - Coal particle

KW - Heat and mass transfer

KW - Ignition

KW - Low-temperature air flow

KW - Numerical research

UR - http://www.scopus.com/inward/record.url?scp=84924697366&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84924697366&partnerID=8YFLogxK

U2 - 10.2298/TSCI140521107G

DO - 10.2298/TSCI140521107G

M3 - Article

AN - SCOPUS:84924697366

VL - 19

SP - 285

EP - 294

JO - Thermal Science

JF - Thermal Science

SN - 0354-9836

IS - 1

ER -