Influence of sheath gas flow rate in Ar induction thermal plasma with Ti powder injection on the plasma temperature by numerical calculation

Abstract

Numerical calculation was conducted to study the gas flow fields and temperature distribution in Ar inductively couple thermal plasma (ICTP) with titanium (Ti) powder injection. Influence of sheath gas flow rates at 90 L/min, 80 L/min and 70 L/min was investigated on the thermal plasma temperature in the torch. Results indicated that higher sheath gas flow rate raises the axial temperature and gas flow velocity in the thermal plasma.