Abstract
In previous work, we have proposed a soot mass prediction model applicable for design calculations of internal combustion engines. In this study, we expanded this model and developed a new model which can predict the soot particle size distribution. The model was validated for experimental results measured by using burner stabilized stagnation flames for iso-octane/n-heptane/toluene blended fuels. As a result, it was shown that the proposed model can reproduce the particle formation characteristics with changes in the fuel mixing ratio, the residence time, and the equivalence ratio. On the other hand, it was found that there is room for improvement in the polycyclization and soot growth process for pure iso-octane and n-heptane flames.