Numerical and Experimental Investigation of Nanosecond-Pulsed Plasma Activated C2H4/O2/Ar Mixtures in a Low Temperature Flow Reactor
53rd AIAA Aerospace Sciences Meeting, 2015•arc.aiaa.org
… The present work combines numerical and experimental efforts together to investigate the
effect of low temperature, nano-second pulsed plasma discharges on the oxidation of
C2H4/O2/Ar mixtures at 60 Torr pressure. The non-equilibrium plasma discharge is modeled
by a two-temperature framework with detailed chemistry-plasma mechanism. The model shows
that 75%~77% of input pulse energy was consumed in electron impact dissociation, excitation
and ionization reactions, which efficiently produces significant amount of important radical …
effect of low temperature, nano-second pulsed plasma discharges on the oxidation of
C2H4/O2/Ar mixtures at 60 Torr pressure. The non-equilibrium plasma discharge is modeled
by a two-temperature framework with detailed chemistry-plasma mechanism. The model shows
that 75%~77% of input pulse energy was consumed in electron impact dissociation, excitation
and ionization reactions, which efficiently produces significant amount of important radical …
C2H2 converts into HCO directly without the need of going through the intermediate species of HCCO, CH2* and CH2 in the case without plasma. Owing to the long lifetime of O2 (𝒂𝒂𝟏𝟏𝚫𝚫𝒈𝒈), this effect can last to 3.1 sec after the finish of all 150 pulses.
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