Abstract
Diesel is an important energy in the current world development. The promotion of industrial development has also brought serious drawbacks, energy depletion, and environmental pollution. Hence, the construction of new alternative diesel fuel has become an indispensable problem. Based on the detailed mechanism model of n-heptane and 1-butene, the simplified mechanism model of n-heptane and 1-butene was constructed by using oxidation path and temperature sensitivity analysis and various mechanism simplification methods. The experimental results show that the ignition delay of the simplified mechanism and the concentration of main components meet the experimental requirements. Coupled with the two simplified mechanisms, a diesel simplified framework containing 136 components and 746 primitive reactions was constructed. The HCCI ignition time was calculated for the diesel simplified framework. The simplified framework of diesel oil can predict the ignition time of HCCI with high precision under different temperature conditions. It can accurately describe the fuel combustion process.
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