TY - GEN
T1 - The effects of repetitively pulsed nanosecond discharges on ignition time in a pulsed detonation engine
AU - Lefkowitz, Joseph
AU - Ju, Yiguang
AU - Stevens, Christopher
AU - Hoke, John
AU - Ombrello, Timothy
AU - Schauer, Frederick
PY - 2013
Y1 - 2013
N2 - An experimental investigation of the effectiveness of a nanosecond duration repetitively-pulsed plasma discharge device for ignition of a pulsed detonation engine was carried out. Ignition of C2H4/air mixtures and aviation gasoline/air mixtures at atmospheric pressure produced a maximum reduction in ignition time of 17% and 25%, respectively, as compared to an automotive aftermarket multiple capacitive-discharge spark ignition system. It was found that the ignition time is reduced as total energy input and pulse repetition frequency is increased. Further investigation of ignition events by Schlieren imaging revealed that at low pulse-repetition frequency (0-5 kHz), individual ignition kernels formed by the discharge do not immediately interact, while at higher pulse-repetition frequencies (≥ 10 kHz) ignition kernels combine and result in a faster transition to a self-propagating flame front.
AB - An experimental investigation of the effectiveness of a nanosecond duration repetitively-pulsed plasma discharge device for ignition of a pulsed detonation engine was carried out. Ignition of C2H4/air mixtures and aviation gasoline/air mixtures at atmospheric pressure produced a maximum reduction in ignition time of 17% and 25%, respectively, as compared to an automotive aftermarket multiple capacitive-discharge spark ignition system. It was found that the ignition time is reduced as total energy input and pulse repetition frequency is increased. Further investigation of ignition events by Schlieren imaging revealed that at low pulse-repetition frequency (0-5 kHz), individual ignition kernels formed by the discharge do not immediately interact, while at higher pulse-repetition frequencies (≥ 10 kHz) ignition kernels combine and result in a faster transition to a self-propagating flame front.
UR - http://www.scopus.com/inward/record.url?scp=84883683231&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84883683231&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84883683231
SN - 9781624102226
T3 - 49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference
BT - 49th AIAA/ASME/SAE/ASEE Joint PropulsionConference
T2 - 49th AIAA/ASME/SAE/ASEE Joint PropulsionConference
Y2 - 14 July 2013 through 17 July 2013
ER -