Vliv rozviřovacího tlaku na stanovení minimální iniciační energie prachu

Abstract

The Thesis deals with the influence of dispersion pressure on determination of minimum ignition energy of dusts. The first part of the thesis defines selected koncepts associated with explosive process and describes factors influencing explosion limits and the course of explosion. Also, priming sources are mentioned and described in more detail. The first part of the Thesis describes available samples, the process of their preparation, which methods can determine their specific characteristics. The second part of the Thesis describes selected dusts, gives their characteristics, illustrates results of determination of geometric density, medium-scale of the particles and dehumidification results. Important part is description of utilized instruments and description of the course of the test. Determination of minimum ignition energy was carried out according to standard ČSN EN 13821, completed with measurements with the values, that were measured with the assessed stirring pressures using high – speed camera.