用波长为 450 和 808 纳米的连续波激光辐射点燃无烟煤微粒

IF 0.8 4区 工程技术 Q4 CHEMISTRY, MULTIDISCIPLINARY
B. P. Aduyev, G. M. Belokurov, I. Yu. Liskov, D. R. Nurmukhametov
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引用次数: 0

摘要

测量了体积密度为 0.5 g/cm3 的无烟煤微粒粉末在波长为 λ = 450 和 808 nm、照射时间为 1 s 的连续波激光辐射下的点火能量和光谱动力学特性。λ=450纳米的辐射点燃无烟煤的能量成本低于λ=808纳米的辐射。在无烟煤吸收激光辐射后产生的发射光谱中,可以观察到与挥发性物质的释放和点燃有关的辉光(CO 火焰和受激 CO、C2 和 H2O 分子的辉光),以及主要与样品表面受热和热碳颗粒发射有关的热辉光。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Ignition of Anthracite Microparticles by Continuous Wave Laser Radiation with Wavelengths of 450 and 808 nm

Ignition of Anthracite Microparticles by Continuous Wave Laser Radiation with Wavelengths of 450 and 808 nm

Ignition of Anthracite Microparticles by Continuous Wave Laser Radiation with Wavelengths of 450 and 808 nm

The energy and spectral kinetic characteristics of the ignition of anthracite microparticle powders with a bulk density of 0.5 g/cm3 were measured when exposed to continuous wave laser radiation at wavelengths λ = 450 and 808 nm with an exposure time of 1 s. The ignition delay times were measured depending on the radiation power density, and the critical values of the ignition energy density of anthracite samples were determined. The energy costs for igniting anthracite for radiation with λ = 450 nm are lower than those for radiation with λ = 808 nm. In the emission spectra of anthracite resulting from the absorption of laser radiation, a glow associated with the release and ignition of volatile substances (CO flame and glow of excited CO, C2, and H2O molecules) and a thermal glow associated mainly with the heated surface of the samples and the emission of hot carbon particles were observed.

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来源期刊
Solid Fuel Chemistry
Solid Fuel Chemistry CHEMISTRY, MULTIDISCIPLINARY-ENERGY & FUELS
CiteScore
1.10
自引率
28.60%
发文量
52
审稿时长
6-12 weeks
期刊介绍: The journal publishes theoretical and applied articles on the chemistry and physics of solid fuels and carbonaceous materials. It addresses the composition, structure, and properties of solid fuels. The aim of the published articles is to demonstrate how novel discoveries, developments, and theories may be used in improved analysis and design of new types of fuels, chemicals, and by-products. The journal is particularly concerned with technological aspects of various chemical conversion processes and includes papers related to geochemistry, petrology and systematization of fossil fuels, their beneficiation and preparation for processing, the processes themselves, and the ultimate recovery of the liquid or gaseous end products.
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