Temperature and Radiation Distriubution of Horizontally Opposed Argon Twin Torch Plasma Arc

Summary form only given. Plasma arc heating has the following outstanding features compared with combustion heating such as the high temperature, high energy density and little exhaust gas. Therefore, it is applied to dissolution, refinement, temperature adjustment of melting steel et al. In addition, the applying plasma arc heating technology, which can make the volume reduction and harmless processing of wastes is expected because of the rise of the concern about an environmental issue in recent years. Treatment of medical waste including a non-conductive and conductive material is expected by using the twin torch plasma arc. However, there are few researches of numerical simulation of an electrode angle and the interelectrode gap for high efficiency heating. In this paper, the temperature and radiation distribution under a horizontally opposed electrode angle and interelectrode gap 30 mm was calculated in order to know the characteristics for high efficiency heating. Moreover, the arc jet collision position of experiment and simulation is compared arc. As a result, the high temperature and radiation area expand in the arc jet collision position. The dark region of a collision point was same as experiment and calculation. The flow velocity near cathode and anode increases with increasing the current because the flow velocity depends on current and temperature. A collision point of arc jet of both electrodes depends on the current.