In this paper, it studied parameters of
low-temperature plasma (LTP) used in systems for cleaning waste gas. LTP
created by positive nanosecond corona discharges, generated by high voltage
pulses with a rise time of 50 ns, duration up to 400 ns, an amplitude up to 90 kV
and pulses repetition 50 - 1000 Hz in coaxial electrode system with gap space 3
- 10 cm through which moving air with linear velocity v = 0.01 to 10 m/s. It
was found that parameters of LTP depended on the flow velocity. The results of
probe measurements of streamers current showed that on the above gaps and pulse
parameters took place streamer breakdown with average field strength less than
10 kV/cm. This limits the energy input into the gas via a streamer corona and,
accordingly, productivity of cleaning plants.
References
[1]
Masuda, S. and Nakao, H. (1986) Removel of NOx in the Exhaust Gas from a Diesel Engine Using Pulsed Plasma. IEEE-IAS Annual Conference, Denver, 1173-1182.
[2]
Ponizovsky, A.Z. and Shvedchicov, A.P. (1994) The Removal of Ecologically Harmful Admixtures from Air by Use of Pulse Corona Discharges Technique and UV-Radiation. Pros. Third Inter. Conf. on Photochemical Conventions and Storage of Solar Energy (IPS-10), 24-29 July 1994, H116.
[3]
Ponizovskii, A.Z. (2007) Cleaning the Ventilation Emissions by Pulsed and DC Corona Discharges. “Nauchtekhlitizdat” Ecological Systems and Devices, №11, 9-14. (In Russian)
[4]
Mel’nikov, V., Ponizovsky, A., Gosteev, S., Maevsky, V. and Ponizovsky, L. (2009) Probe Measurements of Parameters of Cathode-Directed Single Streamers in a Multipoint Corona Discharge System. Proceedings of the 19th International Symposium on Plasma Chemistry, Bochum, 26-31 July 2009, 1.5.04.
[5]
Shockley, W. (1938) Currents to Conductors Induced by a Moving Point Charge. Journal of Applied Physics, 9.
[6]
Ponizovskiy, A., Abramov, A., Gonchrov, V., Gosteev, S., Ponizovskiy, L., Potapov, V.A. and Shvedchicov, A.P. (1993) Optimization of Parameters of Electro Physical Equipment for Air Purification. Russian Electrical Engineering, 64, 77-83.
