Development of a Diesel/Natural Gas Mechanism Model for the CFD Simulation of Dual-Fuel Engine.

ABSTRACT: Diesel/natural gas (NG) can effectively improve the performance and reduce emissions of the reactivity-controlled compression ignition (RCCI) engine. In this work, n-hexadecane was used to characterize diesel and the methane/ethane/propane mixture was used to characterize NG, and a simplified diesel/NG mechanism containing 645 reactions and 155 species was established. We used brute force sensitivity analysis to optimize the key dynamic parameters of the mechanism and, through the laminar flame velocity, the substance concentration in the jet-stirred reactors and the ignition delay in the shock tube to verify the optimized n-hexadecane/NG mechanism and found that this mechanism can better respond to diesel/NG. Finally, the mechanism was coupled with the computational fluid dy

SUBMITTER: Guo X 

PROVIDER: S-EPMC8388102 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature