Abstract
A numerical study of the effects of copper and silver vapours on the air arc behavior is performed. The commercial software FLUENT is adapted and modified to develop a two-dimensional magneto-hydrodynamic (MHD) models of arc with the thermodynamic properties and transport coefficients, net emission coefficient for the radiation model of 99% ai-1% Cu, 99% air-1% Ag, and pure air, respectively. The simulation result demonstrates that vaporization of the electrode material may cool the arc center region and reduce the arc velocity. The effects of Ag vapour are stronger compared to those of Cu vapour.
| Original language | English |
|---|---|
| Pages (from-to) | 323-327 |
| Number of pages | 5 |
| Journal | Plasma Science and Technology |
| Volume | 10 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1 Jun 2008 |
Keywords
- Arc model
- Circuit breaker
- Electrode vaporization
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