A reduced chemical kinetic mechanism of diesel fuel for HCCI engines

A reduced mechanism of diesel fuel was developed on the basis Wang’s mechanism. First, for removing unimportant reactions, an importance index defined computational singular perturbation (CSP). Choosing 0.0065, 140 reactions were removed, and obtained a smaller 403 elementary reactions. Second, 32 global quasi-steady-state (QSS) species found with threshold value 0.005. Finally, smallest containing 77-species obtained. By contrast ignition delay time original mechanism, maximum error final 7.2 %. The also performed experiments date from selected homogeneous charge compression (HCCI) engine, good overlap curves simulation results less than 10