Study on coal char ignition by radiant heat flux.

Research output: Contribution to journalArticle

Abstract

The study on coal char ignition by CO2-continuous laser was carried out. The coal char samples of T-grade bituminous coal and 2B-grade lignite were studied via CO2-laser ignition setup. Ignition delay times were determined at ambient condition in heat flux density range 90-200 W/cm2. The average ignition delay time value for lignite samples were 2 times lower while this difference is larger in high heat flux region and lower in low heat flux region. The kinetic constants for overall oxidation reaction were determined using analytic solution of simplified one-dimensional heat transfer equation with radiant heat transfer boundary condition. The activation energy for lignite char was found to be less than it is for bituminous coal char by approximately 20 %.

Original languageEnglish
Article number012223
JournalJournal of Physics: Conference Series
Volume891
Issue number1
DOIs
Publication statusPublished - 10 Nov 2017
EventInternational Conference on Problems of Thermal Physics and Power Engineering 2017, PTPPE 2017 - Moscow, Russian Federation
Duration: 9 Oct 201711 Oct 2017

Fingerprint

lignite
coal
ignition
heat flux
grade
time lag
heat transfer
lasers
flux density
boundary conditions
activation energy
oxidation
kinetics

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Study on coal char ignition by radiant heat flux. / Korotkikh, A. G.; Slyusarskiy, K. V.

In: Journal of Physics: Conference Series, Vol. 891, No. 1, 012223, 10.11.2017.

Research output: Contribution to journalArticle

@article{b5d7936623a14492b9e15c0944dd998a,
title = "Study on coal char ignition by radiant heat flux.",
abstract = "The study on coal char ignition by CO2-continuous laser was carried out. The coal char samples of T-grade bituminous coal and 2B-grade lignite were studied via CO2-laser ignition setup. Ignition delay times were determined at ambient condition in heat flux density range 90-200 W/cm2. The average ignition delay time value for lignite samples were 2 times lower while this difference is larger in high heat flux region and lower in low heat flux region. The kinetic constants for overall oxidation reaction were determined using analytic solution of simplified one-dimensional heat transfer equation with radiant heat transfer boundary condition. The activation energy for lignite char was found to be less than it is for bituminous coal char by approximately 20 {\%}.",
author = "Korotkikh, {A. G.} and Slyusarskiy, {K. V.}",
year = "2017",
month = "11",
day = "10",
doi = "10.1088/1742-6596/891/1/012223",
language = "English",
volume = "891",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP Publishing Ltd.",
number = "1",

}

TY - JOUR

T1 - Study on coal char ignition by radiant heat flux.

AU - Korotkikh, A. G.

AU - Slyusarskiy, K. V.

PY - 2017/11/10

Y1 - 2017/11/10

N2 - The study on coal char ignition by CO2-continuous laser was carried out. The coal char samples of T-grade bituminous coal and 2B-grade lignite were studied via CO2-laser ignition setup. Ignition delay times were determined at ambient condition in heat flux density range 90-200 W/cm2. The average ignition delay time value for lignite samples were 2 times lower while this difference is larger in high heat flux region and lower in low heat flux region. The kinetic constants for overall oxidation reaction were determined using analytic solution of simplified one-dimensional heat transfer equation with radiant heat transfer boundary condition. The activation energy for lignite char was found to be less than it is for bituminous coal char by approximately 20 %.

AB - The study on coal char ignition by CO2-continuous laser was carried out. The coal char samples of T-grade bituminous coal and 2B-grade lignite were studied via CO2-laser ignition setup. Ignition delay times were determined at ambient condition in heat flux density range 90-200 W/cm2. The average ignition delay time value for lignite samples were 2 times lower while this difference is larger in high heat flux region and lower in low heat flux region. The kinetic constants for overall oxidation reaction were determined using analytic solution of simplified one-dimensional heat transfer equation with radiant heat transfer boundary condition. The activation energy for lignite char was found to be less than it is for bituminous coal char by approximately 20 %.

UR - http://www.scopus.com/inward/record.url?scp=85037045725&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85037045725&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/891/1/012223

DO - 10.1088/1742-6596/891/1/012223

M3 - Article

VL - 891

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012223

ER -