Local Reaction Zone Structure of Non-Premixed Flames of Propane with Highly Preheated Low-Oxygen Air

摘要

zone exist separately. It has been clearly shown from the ion current that homogenous combustion does not occur but the local reaction zone exists separately from burnt and unburnt gases. The thickness of the local reaction zone in the nonluminous region of HiCOT flames is not broadened but is similar to that of the laminar premixed flames. Thickness of the local reaction zone in the non-premixed flames of propane with highly preheated regular air is estimated approximately twice as much as that in the nonluminous regions of the HiCOT flames.