Combustion Characteristics of N-Butanol/N-Heptane Blend Using Reduced Chemical Kinetic Mechanism

The detailed mechanisms of n-heptane and n-butanol were reduced for the target condition ignition delay time using direct relationship diagram method based on error transfer, coupling transfer sensitivity analysis, total material analysis method. (132 species 585 reactions) (82 383 used to verify concentrations major species, respectively. results showed that mechanism has a good prediction ability time. predicted mole fraction in agreement. These combined finally construct n-heptane/butanol fuel mixture, which included 166 746 reactions. Finally, was simulate HCCI combustion mode, can better predict timings under different conditions maintain characteristics mechanism; this indicates model constructed study is reliable.