Abstract

The combustion, explosion, and detonation in hybrid systems containing gas mixtures of CH₄/air, CH₄/O₂, and O₂/coal particles up to 200\(\mu\)m in size with a volume-averaged density of up to 700 g/m³ were studied on a vertical shock tube. X-ray diffraction patterns of the initial coal powder and coal samples subjected to high-temperature waves were analyzed. Data were obtained on the structure and parameters of waves in hybrid mixtures and in the same gas mixtures without coal dust. It is shown that in hybrid systems, coal dust has a weaker influence on the parameters of combustion and detonation waves than methane and that methane in these waves is more reactive than coal dust.

中文翻译：

---

CH 4 /空气，CH 4 / O 2和O 2 /煤粉混合气中的燃烧和爆轰波

摘要

在混合系统中的燃烧，爆炸和爆轰包含CH ₄ /空气，CH ₄ / O ₂和O ₂ /煤颗粒的气体混合物，最大粒度为200 \（\ mu \） m，体积平均密度为在垂直冲击管上研究了高达700 g / m ³的压力。分析了初始煤粉和经受高温波的煤样品的X射线衍射图。获得了有关混合气混合物和不含煤尘的相同气体混合物中波的结构和参数的数据。结果表明，在混合系统中，煤尘对燃烧和爆轰波的参数影响比甲烷弱，并且这些波中的甲烷比煤尘具有更高的反应性。