Theoretical and Experimental Study of Chemical Transformations of a Methane–Hydrogen–Coal Particles Mixture in a Rapid-Compression Machine

被引：3

作者：

Fedorov A.V. ^{[1
]}

Tropin D.A. ^{[1
]}

Penyazkov O.G. ^{[2
]}

Leshchevich V.V. ^{[2
]}

Shimchenko S.Y. ^{[2
]}

机构：

[1] S. A. Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, 4/1 Institutskaya Str., Novosibirsk

[2] A. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, 15 P. Brovka Str., Minsk

来源：

Journal of Engineering Physics and Thermophysics | 2017年 / 90卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

coal dust; coal microparticles; detailed chemical kinetics; ignition; mathematical modeling; methane–air mixture; rapid-compression machine;

D O I：

10.1007/s10891-017-1626-6

中图分类号：

学科分类号：

摘要：

Results of an experimental and numerical study of the ignition of a stoichiometric methane–air mixture in the presence of coal particles of diameters 20–52 μm in the range of temperatures 850–1150 K and pressures 1.5–2.0 MPa are presented. It has been found that the particles begin to burn at a temperature of the oxidizing medium above 850 K. At a temperature above 1000 K, burning particles reduce the time and limiting temperature of ignition of the methane–air mixture. A comparison has been made of the calculated data on ignition-delay times of coal in an air–coal mixture and on ignition-delay times of methane and coal in a methane–air–coal mixture with the experimental data. A satisfactory agreement is shown between the data on ignition-delay times of coal and ignition-delay times of methane in all the mixtures in question. © 2017, Springer Science+Business Media, LLC.

引用

页码：781 / 788

页数：7

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