Determination of the burning velocity of gas/dust hybrid mixtures

Finally, it appears that hybrid mixtures, especially when the gas concentration is greater than the lower explosive limit, can present a synergetic effect enabling faster flame propagation with regard to pure gas flames. Indeed, the stretching of a gas flame is strongly influenced by the addition of dusts. Nevertheless, for lower gas concentrations and larger dust concentrations called 'dust-driven regime', the presence of powders tends to limit the flame velocity to that of the less reactive compound, i.e. the dust.