Carbon particles mass concentration effect on dusts ignition and burning parameters

摘要

High temperature heat and mass transfer of carbon dust was studied numerically.Effect of carbon mass concentration and chemical reactions in pores on burning characteristics was investigated in details.A range of the particles diameters corresponding to maximum fuel burn out was defined.It was shown that in case of porous particles this range is significantly broader and particles ignition critical diameters are smaller. This effect is more pronounced at relatively low gas temperature.