Characteristics of an AC rotating gliding arc discharge in NH3 and air atmospheres

Yu，Tianze1; Zhang，Haotian1; Zhao，Zhixin1; Kong，Chengdong2; Zhang，Ruobing3; Zhu，Jiajian4; Zhou，Bo1

2024-02-01

10.1063/5.0167474

Physics of Plasmas   影响因子和分区

1070-664X

1089-7674

Plasmas have emerged as a promising technology for the utilization of NH as a carbon-free fuel for direct plasmas-assisted combustion and hydrogen production. This study aims to explore the electrical and optical emission characteristics of the rotating gliding arc (RGA) discharge in NH and air swirling flows over a wide range of nominal power inputs. The electrical characteristics were measured using voltage-current probes, while a spectrometer was employed to assess the spectral characteristics. Additionally, a synchronized high-speed camera equipped with a dual-scope objective was utilized to capture transient phenomena of the arc in the optical emission spectrum. Both the spark-type and glow-type discharges were observed in RGA. Interestingly, the spark-type discharge frequency exhibited a non-monotonic variation with increasing nominal power inputs for both NH and air, while the glow-type discharge frequency displayed a monotonous upward trend. Regarding the spectral emission characteristics in NH, a dramatic transition of the arc emission spectrum from H to NH was observed as nominal power inputs increased. The H and NH emissions that are dominated in the spark-type and glow-type discharges, respectively, and the intensity ratio of H and NH emission shows evident correlations with discharge current and electric field strength. In summary, this study represents the first investigation into the electrical and spectral characteristics of RGA in NH

SCI ; EI

英语

第一 ; 通讯

PHYSICS

2-s2.0-85184029155

Scopus

1.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai,200240,China
3.Division of Energy and Environment,Graduate School at Shenzhen,Tsinghua University,Shenzhen,518055,China
4.Science and Technology on Scramjet Laboratory,College of Aerospace Science and Engineering,National University of Defense Technology,Changsha,410073,China

Yu，Tianze,Zhang，Haotian,Zhao，Zhixin,et al. Characteristics of an AC rotating gliding arc discharge in NH3 and air atmospheres[J]. Physics of Plasmas,2024,31(2).

Yu，Tianze.,Zhang，Haotian.,Zhao，Zhixin.,Kong，Chengdong.,Zhang，Ruobing.,...&Zhou，Bo.(2024).Characteristics of an AC rotating gliding arc discharge in NH3 and air atmospheres.Physics of Plasmas,31(2).

Yu，Tianze,et al."Characteristics of an AC rotating gliding arc discharge in NH3 and air atmospheres".Physics of Plasmas 31.2(2024).