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| Study of Factors Influencing the Length of Argon Plasma Jets at
Atmospheric Pressure With Needle Ring Electrodes |
| TIAN Fu-chao1, CHEN Lei2*, PEI Huan2, BAI Jie-qi1, ZENG Wen2 |
1. Department of State Key Laboratory of Coal Mine Safety Technology, CCTEG Shenyang Research Institute, Shen Fu Demonstration Area, Shenyang 113122, China
2. Department of Aero-engine, Shenyang Aerospace University, Shenyang 110136, China
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Abstract A multi-structure needle-ring electrode argon plasma jet device was designed to grasp the quantitative influence of the reactor structure parameters and discharge parameters on the jet length of the atmospheric pressure non-equilibrium plasma jet (N-APPJ). The effects of discharge voltage, electrode gap, the distance between the discharge end of the high-voltage electrode and the ground electrode, and the volume flow of argon on the jet length were calculated. The results show that the maximum length of the plasma jet can reach 80mm; the longer the distance between the discharge end of the high voltage electrode and the ground electrode, the longer the jet length but not linearly; the jet length first increases and then decreases with the increase of the electrode gap, and the jet reaches the maximum length when the electrode gap is 4.5 mm; with the increase of the volume flow of argon, the length of the plasma jet also shows a trend of first increasing and then decreasing, and the decreasing amplitude is low; the electron excitation temperature It is higher at the high-voltage electrode and the ground electrode, and the part between the two electrodes is second, and there will be a more obvious drop at the outlet of the quartz tube.
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Received: 2022-10-23
Accepted: 2023-06-07
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Corresponding Authors:
CHEN Lei
E-mail: chenlei@sau.edu.cn
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