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Cylindrical Air-Gap Electrode Spark Discharge Characterization and Quenching
Journal of Propulsion and Power ( IF 1.9 ) Pub Date : 2021-05-07 , DOI: 10.2514/1.b38303
Darren C. Tinker 1 , Marsalis P. Pullen 1 , Robin J. Osborne 2 , Robert W. Pitz 1
Affiliation  

Spark discharges were parametrically examined for a cylindrical air-gap electrode configuration. The aim of this study was to elucidate spark discharge characteristics, arc penetration, and exhaust plume development to guide designers of relevant ignition devices. Spark gaps ranged from 0.5 to 2.3 mm, nominal pressures ranged from 150 to 2200 kPa, and two exciter types (bipolar and unipolar) were tested. Positive correlations were observed between the pressure–distance product and multiple dependent variables: breakdown voltage, energy discharged, and percentage of sparks quenched. Positive correlations were observed between the pressure–distance quotient and various other dependent variables: spark duration, channel resistance, and plume velocity. This study also discusses the effects of quenching on electrical measurements, how these effects are nontrivial, and the subtle irregularities in electrical results that are indicative of quenching.



中文翻译:

圆柱气隙电极火花放电特性及淬火

对圆柱状气隙电极配置的火花放电进行了参数检查。这项研究的目的是阐明火花放电特性,电弧渗透和排气羽流发展,以指导相关点火装置的设计者。火花隙范围从0.5到2.3 mm,标称压力范围从150到2200 kPa,并且测试了两种激励器类型(双极和单极)。在压力-距离乘积与多个因变量之间观察到正相关:击穿电压,放电能量和熄灭的火花百分比。压力-距离商与其他各种因变量之间存在正相关关系:火花持续时间,通道阻力和羽流速度。这项研究还讨论了淬火对电气测量的影响,

更新日期:2021-05-08
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