This paper reports on an experimental study of the influence of a nanosecond repetitively pulsed spark discharge on the stability domain of a propane/air flame. This flame is produced in a lean premixed swirled combustor representative of an aeronautical combustion chamber. The lean extinction limits of the flame produced without and with plasma are determined and compared. It appears that only a low mean discharge power is necessary to increase the flame stability domain. Lastly, the effects of several parameters (pulse repetition frequency, global flowrate, electrode location) are studied.
One contribution of 14 to a theme issue ‘Physics and chemistry of plasma-assisted combustion’.
- Accepted May 6, 2015.
- © 2015 The Author(s) Published by the Royal Society. All rights reserved.