Ignition of hydrocarbon–containing mixtures by nanosecond discharge: experiment and numerical modelling
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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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