Three-Dimensional Arc Modeling inside Non-Transferred Plasma Torch

Abstract:

Numerical models have been developed to study the characteristics of an arc inside the non-transferred plasma torch. A few of them have considered the diameter of anode spot and arc length in given current and gas flow rate. In this work, a three-dimensional model is developed to simulate power and entropy in the given current and diameter of anode spot. Different combinations of diameter of anode spot and arc length can produce torch power that corresponds to given current and gas flow rate. From the possible combinations of the diameter of anode spot and arc length predicted for given current and gas flow rate, the most feasible combination is obtained.

• Periodical: Applied Mechanics and Materials (Volumes 217-219)
• Pages: 1407-1410
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.217-219.1407
• Online since: November 2012
• Authors: Hai Ling Han, Qing Lin Wang
• Keywords: Arc Length, Diameter of Anode Spot, Entropy, Non-Transferred Plasma Torch, Power

References

[1] R. Westhoff and J. Szekely: Appl. Phys. Vol. 70 (1991), p.3455.

[2] A. B. Murphy and P. Kovitya: Appl. Phys. Vol. 73 (1993), p.4759.

[3] H. P. Li and X. Chen: Chinese Physics. Vol. 11 (2002), p.44.

[4] H. P. Li, E. Pfender and X. Chen: Phys. D Appl. Phys. Vol. 36 (2003), p.1084.

[5] A. B. Murphy and C. J. Arundell: Plasma Chem. Plasma Process. Vol. 14 (1994), p.451.

[6] X. Q. Yuan, H. Li, T. Z. Zhao: Acta physica sinica. Vol. 53 (2004), p.3806.

[7] K. C. Hsu, K. Etemadi and E. Pfender: J. Appl. Phys. Vol. 54 (1983), p.1293.

[8] D. A. Scott, P. Kovitya and G. N. Haddad: J. Appl. Phys. Vol.11 (1989), p.5232.