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

2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2018-11-01 DOI:10.1109/RTUCON.2018.8659832

O. Krickis, S. Jaundālders

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引用次数: 1

Abstract

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.

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直流电场对丙烷燃烧副产物的影响及火焰的声效应

几十年来，人们广泛研究了电场对气体燃料燃烧的影响。根据研究结果，可以在烟气中相对较小的NOx浓度增加的情况下实现高CO还原率。尽管有大量类似的研究，但实验单元涉及到直流或交流电源连接到电极的传统布局。在本研究的框架下，提出了新的直流电源连接电极的布局，使电场强度提高到1150kV/m，使电极之间的最大电位差保持在2.3kV水平。与无电场条件相比，使用电场在燃烧器内部产生的最大CO排放量减少了41%。除了减少排放，声信号的FFT分析显示，在高电场强度水平下，振幅显著上升。

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2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)

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