DC Electrical Field Impact on Propane Combustion By-Products and Acoustic Effect of The Flame

The effect of the electric field impact on gaseous fuels combustion was extensively studied for several decades. According to the studies results, it is possible to achieve high CO reduction rates with relatively small increase of NOx concentration in flue gases. Despite the fact of a high number of the similar researches, experimental units involved conventional layout of the DC or AC source connection to the electrodes. In framework of the current research was proposed new DC source connection layout to the electrodes, which allowed to rise the electric field intensity to 1150kV/m keeping the maximum potential difference between electrodes at 2.3kV level. The maximum registered CO emissions reduction in application of electric field, which was produced internally in burner, achieved 41% comparing with electric field free conditions. In addition to emissions reduction, FFT analysis of acoustic signal showed significant amplitude rise at high electric field intensity levels.