The Dependence of Soot Yield on Flame Conditions— Unifying Picture

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Abstract
-The trends of soot yield as a function of flame temperature and equivalence ratio are summarized. On a single plot.schematic contours of soot yield are drawn to represent trends induced from published data for both premixed and diffusion flames. For reference, calculated values of adiabatic flame temperature versus equivalence ratio are included. A hypothetical laboratory burner experiment-a consolidation of experiments cited in the literature-is presented to show how the plot unifies much phenomenological data on soot formation. The plot is also used to show how some operating conditions affect Diesel soot emissions. Armed with this summary, a researcher should be better able to interpret the complex changes of soot yield with operating conditions of practical devices.