Effect of an electric field on concentration limits for propane flame propagation in air

Effects of electric field intensity and distribution on flame propagation speed of CH4/O2/N2 flames

“…During the combustion in the experiment, since the high-voltage electrodes in the experiment were applied a negative high voltage, these positive ions make effects on the flame propagation, leading to the generation of the ionic wind effect. It enhances the mass and heat transfer along the electric field direction among the burning zone, the flame front and the unburned mixture, and ultimately promotes the movement of the flame front area to the unburned mixture [18][19][20]. That is just the reason why the DC electric fields can promote the flame propagation in the experiment.…”

“…Till now, several types of flames such as Bunsen flame [2,3], jet flame [4,5], flat flame [6,7], counter-flow flame [8,9] and tribrachial flame [10] have been reported, using DC (direct-current) [11,12] or AC (alternating-current) [13,14] electric fields. Results indicated that combustion characteristics, including flame propagation [15], flame stabilization [16], heat release [17], flammability limits [18], and combustion products [19,20] and so on, can be markedly modified via the interaction between electric fields and ions generated in combustion.…”

Experimental Study of Lean Premixed CH4/N2/O2 Flames under High-Frequency Alternating-Current Electric Fields

“…So far, several types of flames have been reported, such as Bunsen flame, , jet flame, , flat flame, , counter-flow flame, , and tribrachial flame . As a result, it is known that combustion characteristics can be markedly modified via the interaction between electric fields and ions generated in combustion, including flame propagation, flame stabilization, heat release, flammability limits, combustion products, , and so on.…”

Direct Current Forcing of an Atmospheric Multiburner Flame for Rocket Combustor Emulation

“…An alternative for the central electrode is a cylindrical electrode that surrounds the flame that could be integrated into the walls of the combustion chamber itself. Tube-or cylinder-type electrodes have been studied in the past [20][21][22][23][24][25][26][27][28], though also with single central flames. With multiple injectors and thus multiple flames, the location relative to the electrode/chamber walls becomes a factor in the electric field strength and thus effect on the flame.…”