Title :
Ignition of Propane–Air Mixtures by a Repetitively Pulsed Nanosecond Discharge
Author :
Pancheshnyi, Sergey V. ; Lacoste, Deanna A. ; Bourdon, Anne ; Laux, Christophe O.
Author_Institution :
Ecole Centrale Paris
Abstract :
Results of an experimental study of the efficiency of the ignition of propane-air mixtures by a high voltage repetitively pulsed nanosecond gas discharge (10 kV, 10 ns, 30 kHz) are presented for the pressure range 0.35-2.0 bar. The measured minimal energy for ignition is found to decrease with the pressure. A significant reduction of the ignition delay and a decrease of the overall combustion duration were obtained by using a train of high-voltage pulses. Spectroscopic measurements in a 1-bar air just after a 10-pulse train (300 mus) of about 10 mJ in total energy show the presence of N, N+, O, and O+ atomic species and a gas temperature increase up to 3000 K
Keywords :
combustion; discharges (electric); gas mixtures; organic compounds; plasma chemistry; spectrochemical analysis; 0.35 to 2.0 bar; 10 kV; 10 ns; 30 kHz; atomic species; combustion; gas temperature; propane-air mixture ignition; repetitively pulsed nanosecond discharge; spectroscopic measurements; Atomic measurements; Combustion; Delay; Discharges; Energy measurement; Ignition; Pressure measurement; Spectroscopy; Temperature; Voltage; Nanosecond plasma; plasma-assisted ignition; propane–air mixture inflammation; repetitively pulsed nanosecond discharge;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2006.876421
