Study on a New Type of Composite Powder Explosion Inhibitor Used to Suppress Underground Coal Dust Explosion

Explosion dust particle size measurements.

In situ measurements of the sizes and concentrations of dust particles generated by the detonation of high explosives in clay soil near Leesville, La., sandy clay soil near Huntsville, Ala., and sandy soils near Orogrande, N.M. are reported. Measurements were generally made within 1 m of the surface (in one case 10 m) at distances ranging from 10 to approximately 50 m from the detonation point ...

Overall characterization of cork dust explosion.

Explosibility and ignitability studies of air/cork dust mixtures were conducted in a near-spherical 22.7 L explosibility test chamber using pyrotechnic ignitors and in a furnace of 1.23 L. The suspension dust burned as air-dispersed dust clouds and the uniformity of the dispersion inside the chamber was evaluated through optical dust probes. The range of tested particle sizes went from a mass m...

Dust Explosion Propagation: Myths and Realities

Strategy to suppress epidemic explosion in heterogeneous metapopulation networks.

We propose an efficient strategy to suppress epidemic explosion in heterogeneous metapopulation networks, wherein each node represents a subpopulation with any number of individuals and is assigned a curing rate that is proportional to kα with the node degree k and an adjustable parameter α. We perform stochastic simulations of the dynamical reaction-diffusion processes associated with the susc...

CFD Modelling of Nanoparticles Dispersion in a Dust Explosion Apparatus

CFD Modelling of Nanoparticles Dispersion in a Dust Explosion Apparatus Carlos Murillo, Olivier Dufaud, Omar López, Laurent Perrin, Alexis Vignes, Felipe Muñoz. Chemical Engineering Department, Universidad de los Andes, Colombia. Laboratoire des Sciences du Génie Chimique (LSGC), Nancy-Université, CNRS 1, rue Grandville, BP 20451, 54001 Nancy, France. Mechanical Engineering Department, Universi...