Liu, Kang-Lin
(state Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University)
,
Liao, Rui-Jin
(State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University)
,
Zhao, Xue-Tong
(State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University)
In order to explore the characteristics of electrons in DC negative corona discharge, an improved plasma chemical model is presented for the simulation of bar-plate DC corona discharge in dry air. The model is based on plasma hydrodynamics and chemical models in which 12 species are considered. In a...
In order to explore the characteristics of electrons in DC negative corona discharge, an improved plasma chemical model is presented for the simulation of bar-plate DC corona discharge in dry air. The model is based on plasma hydrodynamics and chemical models in which 12 species are considered. In addition, the photoionization and secondary electron emission effect are also incorporated within the model as well. Based on this model, electron mean energy distribution (EMED), electron density distribution (EDD), generation and dissipation rates of electron at 6 typical time points during a pulse are discussed emphatically. The obtained results show that, the maximum of electron mean energy (EME) appears in field ionization layer which moves towards the anode as time progresses, and its value decreases gradually. Within a pulse process, the electron density (ED) in cathode sheath almost keeps 0, and the maximum of ED appears in the outer layer of the cathode sheath. Among all reactions, R1 and R2 are regarded as the main process of electron proliferation, and R22 plays a dominant role in the dissipation process of electron. The obtained results will provide valuable insights to the physical mechanism of negative corona discharge in air.
In order to explore the characteristics of electrons in DC negative corona discharge, an improved plasma chemical model is presented for the simulation of bar-plate DC corona discharge in dry air. The model is based on plasma hydrodynamics and chemical models in which 12 species are considered. In addition, the photoionization and secondary electron emission effect are also incorporated within the model as well. Based on this model, electron mean energy distribution (EMED), electron density distribution (EDD), generation and dissipation rates of electron at 6 typical time points during a pulse are discussed emphatically. The obtained results show that, the maximum of electron mean energy (EME) appears in field ionization layer which moves towards the anode as time progresses, and its value decreases gradually. Within a pulse process, the electron density (ED) in cathode sheath almost keeps 0, and the maximum of ED appears in the outer layer of the cathode sheath. Among all reactions, R1 and R2 are regarded as the main process of electron proliferation, and R22 plays a dominant role in the dissipation process of electron. The obtained results will provide valuable insights to the physical mechanism of negative corona discharge in air.
This paper presents a new plasma hybrid model for the simulation of DC negative corona discharge under atmospheric air. Using the proposed novel simulation model, this work aims at discussing some microcosmic characteristics such as electron mean energy distribution, electron density distribution, generation and dissipation performances of electrons along the axis during a pulse cycle in order to understand the main physical mechanisms.
제안 방법
This paper presents a new plasma hybrid model for the simulation of DC negative corona discharge under atmospheric air. Using the proposed novel simulation model, this work aims at discussing some microcosmic characteristics such as electron mean energy distribution, electron density distribution, generation and dissipation performances of electrons along the axis during a pulse cycle in order to understand the main physical mechanisms. The rest of the present paper is organized as follows.
이론/모형
In substance, the solution of the microcosmic mechanism for corona discharge is to convert the electron conservation equation, the electron energy conservation, the heavy species multi-component diffusion transport equation, governing equations for heavy particles, and the Poisson's equation into the appropriate system of partial differential equations which are then normalized and solved by means of discrete numerical difference equations.
The model in this work is implemented in COMSOL Multiphysic package based on finite element method. Fully implicit time stepping method is used for the Eqs.
성능/효과
1) At the beginning of the pulse cycle, the maximum of electron mean energy (EME) occurs near the cathode, and declines to its minimum near the anode in a form of exponential decay. As time goes on, the maximum of EME appears in the field ionization layer, and moves along the field ionization layer from cathode to anode, meanwhile its value reduces gradually.
As time goes on, the maximum of EME appears in the field ionization layer, and moves along the field ionization layer from cathode to anode, meanwhile its value reduces gradually. 2) Within a pulse process, the electron density (ED) in cathode sheath almost keeps almost 0, and the maximum of ED appears in the outer layer of the cathode sheath. The electron density distribution (EDD) moves towards the anode, and the density of space gap increases gradually.
The electron density distribution (EDD) moves towards the anode, and the density of space gap increases gradually. 3) R1, R2 and R22 play the main role in the whole discharge process. R1 and R2 which are the collision reaction of electrons associated respectively with N2 and O2 regarded as the main process of electron proliferation, besides, reaction rates of R1 and R2 almost keep the same curve.
1) At the beginning of the pulse cycle, the maximum of electron mean energy (EME) occurs near the cathode, and declines to its minimum near the anode in a form of exponential decay. As time goes on, the maximum of EME appears in the field ionization layer, and moves along the field ionization layer from cathode to anode, meanwhile its value reduces gradually. 2) Within a pulse process, the electron density (ED) in cathode sheath almost keeps almost 0, and the maximum of ED appears in the outer layer of the cathode sheath.
3) R1, R2 and R22 play the main role in the whole discharge process. R1 and R2 which are the collision reaction of electrons associated respectively with N2 and O2 regarded as the main process of electron proliferation, besides, reaction rates of R1 and R2 almost keep the same curve. R22 is the recombination reaction of N2, N2+ and e, which plays a dominant role in the dissipation process of electrons.
2) Within a pulse process, the electron density (ED) in cathode sheath almost keeps almost 0, and the maximum of ED appears in the outer layer of the cathode sheath. The electron density distribution (EDD) moves towards the anode, and the density of space gap increases gradually. 3) R1, R2 and R22 play the main role in the whole discharge process.
참고문헌 (45)
H. Yin, J.L. He, B. Zhang, “Finite volume-based approach for the hybrid ion-flow field of UHVAC and UHVDC transmission lines in parallel”, IEEE Transactions on Power Delivery, vol. 26, no. 4, pp. 2809-2820, September 2005.
L. Chen, X. Bian, L. Wang, “Effect of rain drops on corona discharge in alternating current transmission lines with a corona cage”, Japanese Journal of Applied Physics, vol. 51, no. 9S2, pp. 09MG02, September 2012.
X.B. Bian, L.C. Chen, D. Yu, “Impact of surface roughness on corona discharge for 30-year operating conductors in 500-kV ac power transmission line”,IEEE Transactions on Power Delivery, vol. 27, no. 3, pp. 1693-1695, July 2012.
Y. Kim, K. Shong, “The characteristics of UV strength according to corona discharge from polymer insulators using a UV sensor and optic lens”, IEEE Transactions on Power Delivery, vol. 26, no. 3, pp. 1579-1584, July 2011.
G. Horvath, M. Zahoran, N. J. Mason, “Methane decomposition leading to deposit formation in a DC positive CH4-N2 corona discharge”, Plasma Chemistry and Plasma Processing, vol. 31, no. 2, pp. 327-335, April 2011.
C. Labay, C. Canal, M.J. García-Celma, “Influence of corona plasma treatment on polypropylene and polyamide 6.6 on the release of a Model Drug”, Plasma Chemistry and Plasma Processing, vol. 30, no. 6, pp. 327-335, December 2010.
M. Redolfi, N. Aggadi, X. Duten, “Oxidation of acetylene in atmospheric pressure pulsed corona discharge cell working in the nanosecond regime”, Plasma Chemistry and Plasma Processing, vol. 29, no. 3, pp. 173-195, June 2009.
B. M. Penetrante, J. N. Bardsley, M. C. Hsiao, “Kinetic analysis of non-thermal plasmas used for pollution control”, Japanese journal of applied physics, vol. 36, no. 7S, pp. 5007, July 1997.
S. Masuda, H. Nakao, “Control of NOx by positive and negative pulsed corona discharges”, IEEE Transactions on Industry Applications, vol. 26, no. 2, pp. 374-383, April 1990.
W. Peukert, C. Wadenpohl, “Industrial separation of ine particles with difficult dust properties”, Powder Technology, vol. 118, no. 1, pp. 136-148, August 2001.
C. Lanzerstorfer, “Solid/Liquid-Gas Separation with Wet Scrubbers and Wet Electrostatic Precipitators: A Review”, Filtration and Separation, vol. 37, no. 5, pp. 30-34, June 2000.
G. Deli, Y. Xuechang, Z. Fei, et al, “Experimental study on indoor air cleaning technique of nano-titania catalysis under plasma discharge”, Plasma Science and Technology, vol. 10, no. 2, pp. 216, April 2008.
I. Fofana, A. Beroual, “A model for long air gap discharge using an equivalent electrical network”, IEEE Transactions on Dielectrics and Electrical Insulation, vol. 3, no. 2, pp. 273-282, April 1996.
S. Nijdam, K. Miermans, E. M. van Veldhuizen, “A peculiar streamer morphology created by a complex voltage pulse”, IEEE Transactions on Plasma Science, vol. 39, no. 11, pp. 2216-2217, November 2011.
K. Sekimoto, M. Takayama, “Influence of needle voltage on the formation of negative core ions using atmospheric pressure corona discharge in air”, International Journal of Mass Spectrometry, vol. 261, no. 1, pp. 38-44, March 2007.
T. J. Sommerer, M. J. Kushner, “Numerical investigation of the kinetics and chemistry of rf glow discharge plasmas sustained in He, N 2 , O 2 , He/N 2 / O 2 , He/CF 4 /O 2 , and SiH4/NH3 using a Monte Carlofluid hybrid model”, Journal of applied physics, vol. 761, no. 4, pp. 1654-1673, March 1992.
J. Nahomy, C. M. Ferreira, B. Gordiets, “Experimental and theoretical investigation of a N 2 -O 2 DC flowing glow discharge”, Journal of Physics D: Applied Physics, vol. 28, no. 4, pp. 738, April 1995.
S. Pancheshnyi, M. Nudnova, A. Starikovskii, “Development of a cathode-directed streamer discharge in air at different pressures: experiment and comparison with direct numerical simulation”, Physical Review E, vol. 71, no. 1, pp. 016407, January 2005.
X. H. Liu, W. He, F. Yang, “ Numerical simulation and experimental validation of a direct current air corona discharge under atmospheric pressure”, Chinese Physics B , vol. 21, no. 7, pp. 075201, July 2012.
W. He, X. H. Liu, F. Yang, “Numerical simulation of direct current glow discharge in air with experimental validation”, Japanese Journal of Applied Physics, vol. 51, no. 2R, pp. 026001, February 2012.
D. S. Antao, D. A. Staack, A. Fridman, “Atmospheric pressure dc corona discharges: operating regimes and potential applications”, Plasma Sources Science and Technology, vol. 18, no. 3, pp. 035016, August 2009.
F. F. Wu, R. J. Liao, K. Wang, “Numerical Simulation of the Characteristics of Heavy Particles in Bar-Plate DC Positive Corona Discharge Based on a Hybrid Model”, IEEE Transactions on Plasma Science, vol. 42, no. 3, pp. 868-878, March 2014.
G. E. Georghiou, A. P. Papadakis, R. Morrow, “Numerical modelling of atmospheric pressure gas discharges leading to plasma production”, Journal of Physics D: Applied Physics, vol. 38, no. 20, pp. R303, October 2005.
C. Li, U. Ebert, W. Hundsdorfer, “Spatially hybrid computations for streamer discharges with generic features of pulled fronts: I. Planar fronts”, Journal of Computational Physics, vol. 229, no. 1, pp. 200-220, January 2010.
T. N. Tran, I. O. Golosnoy, P. L. Lewin, “Numerical modelling of negative discharges in air with experimental validation”, Journal of Physics D: Applied Physics, vol. 44, no. 1, pp. 015203, January 2011.
B. F. Gordiets, C. M. Ferreira, V. L. Guerra V L, “Kinetic model of a low-pressure N 2 -O 2 flowing glow discharge”, IEEE Transactions on Plasma Science, vol. 23, no. 4, pp. 750-768, August 1995.
S. Mahadevan, L. L. Raja, “Simulations of directcurrent air glow discharge at pressures~1 Torr: Discharge model validation”, Journal of Applied Physics, vol. 107, no. 9, pp. 093304, May 2010.
A. A. Kulikovsky, “The role of photoionization in positive streamer dynamics”, Journal of Physics D: Applied Physics, vol. 33, no. 12, pp. 1514, June 2000.
N. Liu, V. P. Pasko, “Effects of photoionization on similarity properties of streamers at various pressures in air”, Journal of Physics D: Applied Physics, vol. 39, no. 2, pp. 327, January 2006.
S. Nijdam, F. Van De Wetering, R. Blanc, “Probing photo-ionization: experiments on positive streamers in pure gases and mixtures”, Journal of Physics D: Applied Physics, vol. 43, no. 14, pp. 14520, April 2010.
M. B. Zhelezniak, A. K. Mnatsakanian, S. V. Sizykh, “Photoionization of nitrogen and oxygen mixtures by radiation from a gas discharge”, High Temperature Science, vol. 20, no. 3, pp. 423-428, November 1982.
I. A. Kossyi, A. Y. Kostinsky, A. A. Matveyev, “Kinetic scheme of the non-equilibrium discharge in nitrogen-oxygen mixtures”, Plasma Sources Science and Technology, vol. 1, no. 3, pp. 207, August 1992.
P. Ségur, A. Bourdon, E. Marode, “The use of an improved Eddington approximation to facilitate the calculation of photoionization in streamer discharges”, Plasma Sources Science and Technology, vol. 15, no. 4, pp. 648, November 2006.
T. Farouk, B. Farouk, D. Staack, “Simulation of dc atmospheric pressure argon micro glow-discharge”, Plasma Sources Science and Technology, vol. 15, no. 4, pp. 676, November 2006.
G. J. M. Hagelaar, F. J. De Hoog, G. M. W. Kroesen, “Boundary conditions in fluid models of gas discharges”, Physical Review E, vol. 62, no. 1, pp. 1452, July 2000.
Y. Gosho, “Enhancement of dc positive streamer corona in a point-plane gap in air due to addition of a small amount of an electronegative gas”, Journal of Physics D: Applied Physics, vol. 14, no. 11, pp. 2035, November 1981.
J. Y. Won, P. F. Williams, “Experimental study of streamers in pure N 2 and N 2 /O 2 mixtures and a ≈ 13cm gap”, Journal of Physics D: Applied Physics, vol. 35, no. 3, pp. 205, February 2002.
W. X. Sima, Q. J. P, Q. Yang, “Local electron mean energy profile of positive primary streamer discharge with pin-plate electrodes in oxygen - nitrogen mixtures”, Chinese Physics B, vol. 22, no. 1, pp. 015203, January 2013.
R. Zentner, “Rise Time of Negative Corona Pulses”, Zeitschrift Fur Angewandte Physik, vol. 29, no. 5, pp. 294-&, January 1970.
C. Soria-Hoyo, F. Pontiga, A. Castellanos, “Particle-in-cell simulation of Trichel pulses in pure oxygen”, Journal of Physics D: Applied Physics, vol. 40, no. 15, pp. 4552, August 2007.
R. J. Liao, F. F. Wu, L.J. Yang, “Investigation on Microcosmic Characteristics of Trichel Pulse in Bar-Plate DC Negative Corona Discharge Based on a Novel Simulation Model”, International Review of Electrical Engineering, vol. 8, no. 1, 2013.
W.X. Sima, Q.J. Peng, Q. Yang, “Local electron mean energy profile of positive primary streamer discharge with pin-plate electrodes in oxygen - nitrogen mixtures”, Chinese Physics B, vol. 22, no. 1, pp. 015203, January 2013.
J. D. Bourke, C. T. Chantler, “Electron energy losss pectra and overestimation of inelastic mean free paths in many-pole models”, The Journal of Physical Chemistry A, vol. 116, no. 12, pp. 3202-3205, March 2012.
J. Chen, J. H. Davidson, “Ozone production in the positive DC corona discharge: Model and comparison to experiments”, Plasma chemistry and plasma processing, vol. 22, no. 4, pp. 495-522, December 2002.
D. Staack, B. Farouk, A. Gutsol, “Characterization of a dc atmospheric pressure normal glow discharge”, Plasma Sources Science and Technology, vol. 14, no. 4, pp. 700, November 2005.
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