TY - GEN
T1 - N-heptane/O2/Ar low temperature kinetics with nano-second pulsed plasma discharges
AU - Rousso, Aric
AU - Lefkowitz, Joseph
AU - Ju, Yiguang
N1 - Publisher Copyright:
© 2016, American Institute of Aeronautics and Astronautics Inc, AIAA. All Rights Reserved.
PY - 2016
Y1 - 2016
N2 - Plasma assisted low temperature oxidation and pyrolysis of n-Heptane/O2/Ar mixtures have been experimentally investigated by using steady state species sampling and time-dependent species quantification with in situ tunable diode laser absorption spectroscopy (TDLAS). The present study aims to understand the effect of energy transfer via excited species and direct electron impact dissociation by varying argon and oxygen concentrations on the intermediate species and product of n-heptane oxidation in a nanosecond repetitively pulsed dielectric barrier discharge. The results show that fuel consumption and product formation increased linearly with increasing plasma pulse frequency, suggesting a lack of explosive chain-branching processes at room temperature. It is shown that pyrolysis pathways favored larger hydrocarbons with less temperature release than oxygenated pathways, where large concentrations of formaldehyde, carbon dioxide and water allowed for greater heat release.
AB - Plasma assisted low temperature oxidation and pyrolysis of n-Heptane/O2/Ar mixtures have been experimentally investigated by using steady state species sampling and time-dependent species quantification with in situ tunable diode laser absorption spectroscopy (TDLAS). The present study aims to understand the effect of energy transfer via excited species and direct electron impact dissociation by varying argon and oxygen concentrations on the intermediate species and product of n-heptane oxidation in a nanosecond repetitively pulsed dielectric barrier discharge. The results show that fuel consumption and product formation increased linearly with increasing plasma pulse frequency, suggesting a lack of explosive chain-branching processes at room temperature. It is shown that pyrolysis pathways favored larger hydrocarbons with less temperature release than oxygenated pathways, where large concentrations of formaldehyde, carbon dioxide and water allowed for greater heat release.
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M3 - Conference contribution
AN - SCOPUS:85007420704
SN - 9781624103933
T3 - 54th AIAA Aerospace Sciences Meeting
BT - 54th AIAA Aerospace Sciences Meeting
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - 54th AIAA Aerospace Sciences Meeting, 2016
Y2 - 4 January 2016 through 8 January 2016
ER -