Abstract
Using a direct path flux analysis (PFA) method, we preliminarily produce a skeletal ethylene mechanism with 190 species and 1163 reactions, which offers the best compromise between the complexity and accuracy in terms of the predictions of polycyclic aromatic hydrocarbons. The original kinetic database is taken from a 581-species mechanism of multi-fuels (C1-4). We conduct the mechanism reduction to various levels for proper understanding the trade-off between the mechanism size and its prediction capability. is the mechanism reduced with different levels are examined by comparing simulation results of ethylene combustion in homogeneous reactor, premixed flame speed and premixed laminar tubular flame with the predictions obtained from the original mechanism.