Analysis of the Pulsed Heating Mechanism to the Plasma Stream

The hybrid plasma apparatus, which heats the plasma jet by the pulsed magnetic field, can't only increase the power of the plasma jet but also control the configuration and temperature distribution of it. The object of this study is theoretical and experimental investigation of the pulsed heating mechanism to the plasma jet. Based on the idealizd hybrid plasma model, theoretical temperature and power input distribution of the hybrid plasma were obtained by numerically solving a set of equation which included Maxwell's field equation, Ohm's law and Elenbaas-Heller's equation. In experiment, using the 3 turns induction coil, the damped pulsed magnetic field was applied to the plasma jet which was generated at arc current 100A, argon gas flow rate 41/min.. The frequency of the damped pulsed magnetic field was 65.7kHz, 375kHz and the strength of it was 1,986&acd