Ignition of hydrocarbon–containing mixtures by nanosecond discharge: experiment and numerical modelling
The efficiency of nonequilibrium plasma of pulsed discharge as an igniter of combustible mixtures at elevated temperatures was investigated via shock tube technique. Experiments were carried out behind a reflected shock wave. The experiments were carried out with a set of stoichiometric mixtures CnH2n+2:O2 (10%) diluted by Ar (90%) for hydrocarbons from CH4 to C5H12. The temperature behind the reflected shock wave varied from 950 to 2000~K, and the pressure was 0.2 to 2.0~atm. Numerical modelling has been performed to compare the autoignition and ignition by a nanosecond discharge for CH4 – C5H12 containing mixtures. The results of the calculations demonstrate reasonable correlation with the experimental data.
KeywordsShock Wave Shock Tube Active Particle Ignition Delay Time Hydrocarbon Molecule
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