DNSs of the Ignition of a Lean n-Heptane/Air Mixture under SCCI Conditions: A Parametric Study

Homogeneous-charge compression ignition (HCCI) engines have emerged as one of the most probable alternatives to conventional gasoline and diesel engines, providing high diesel-like thermal efficiency and avoiding excessive NOx and particulate emissions. However, the development of real HCCI engines encounters two remaining issues: excessive pressure-rise rate (PRR) and ignition-timing control [1-8]