Generator of chemically active low-temperature plasma

31st International Conference on Equations of State for Matter

Tyuftyaev, A.S.^1 ; Gadzhiev, M.Kh.^1 ; Sargsyan, M.A.^1 ; Demirov, N.A.^1 ; Spector, N.O.^1

Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bldg 2, Moscow

125412, Russia^1

关键词: Air plasmas;    DC plasma torch;    Low temperature plasmas;    Maximum power;    Plasma forming gas;    Plasma temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/774/1/012203/pdf
DOI  :  10.1088/1742-6596/774/1/012203

来源: IOP

【 摘 要 】

A new generator of high enthalpy (H0> 40 kJ/g), chemically active nitrogen and air plasmas was designed and constructed. Main feature of the generator is an expanding channel of an output electrode; the generator belongs to the class of DC plasma torches with thermionic cathode with an efficiency of 80%. The generator ensures the formation of a slightly divergent plasma jet (2α = 12°) with a diameter of D = 10-12 mm, an electric arc maximum power of 20-50 kW, plasma forming gas flow rate 1.0-2.0 g/s, and the average plasma temperature at an outlet of 8000-11000 K.