Title :
Temperature Distribution of Argon Gas Tungsten Arc Considering the Nonequilibrium Effect
Author :
Tashiro, Shinichi ; Iwao, Toru ; Inaba, Tuginori ; Murphy, Anthony B. ; Tanaka, Manabu
Author_Institution :
Joining & Welding Res. Inst., Osaka Univ., Ibaraki
Abstract :
Since gas tungsten arc (GTA) can stabilize a high-temperature arc plasma by employing shielding gas, it is used as a heat source device. It has high heating efficiency and highly controllable characteristics and requires low cost for equipment investment. Therefore, it is widely utilized, for example, for production of nanoparticles, material processing, detoxification of toxic waste, and so on. A numerical simulation model is a useful tool to evaluate the heat source property of GTA. Simulated images of temperature distributions of GTA considering the nonequilibrium effect are presented.
Keywords :
arcs (electric); argon; numerical analysis; plasma simulation; plasma temperature; Ar; argon gas tungsten arc; heat source device; heating efficiency; high-temperature arc plasma; material processing; nanoparticles production; nonequilibrium effect; numerical simulation; shielding gas; temperature distribution; toxic waste detoxification; Argon; Heating; Plasma devices; Plasma materials processing; Plasma properties; Plasma sources; Plasma temperature; Temperature control; Temperature distribution; Tungsten; Arc plasma; non-equilibrium; numerical simulation;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2008.927100
