1 research outputs found
Numerical Modeling of Torch Design for Plasma Atomization
In this study, internal geometry of a non-transferred plasma torch was
investigated for plasma atomization. Numerical analysis was performed by
a computational fluid dynamics approach for the plasma jet formation.
Gas velocity and temperature distribution at the plasma jet formed
outside of the torch is very important for plasma atomization. In terms
of achieving high jet temperature and jet velocity the internal geometry
is the most important factor that affects the efficiency of the
atomization. In a high-efficiency plasma torch, the gas velocity and
temperature must be as high as possible at the plasma jet. For this
reason, the effect of gas flow rate and current value on the gas
velocity and temperature in the plasma jet is investigated
parametrically. Numerical solutions of the calculated fluid dynamics are
given and analysis results are given to determine the most suitable
working conditions. The results showed that the internal geometry has
significant effect on the plasma jet temperature and velocity at the
outside of the torch