Fenomena lucutan plasma dengan jarum suntik sebagai elektroda aktif pada kondisi atmosfer

Abstract

An observation of the plasma discharge phenomenon has been observed in the atmospheric conditions with a syringe as an active electrode. This study aims to obtain the characteristics of plasma generation and discharge from plasma generated. The method used in this experiment uses a plasma reactor with a dot-zone configuration given DC voltage (HV DC). Syringes are treated as point electrodes and aluminum plates as field electrodes mounted perpendicularly. The distance between the electrodes varied 2, 4, 6 and 8 mm, the syringes used in the experiment had a length of 4 cm with a diameter of 0.6 mm. The results obtained show that the distance between electrode effect on the magnitude of the voltage to achieve arc discharges. At the smallest distance 2 mm arc discharge occurs after a given voltage exceeds 250 Volts, while the largest distance of 8 mm exceeds 1000 Volts. The visible shape when the syringe is given positive or negative polarity from a purple incandescent light source at the needle tip with a measured current of 35-150 μA. After reaching the arc measurable current measured 1-4 mA, on the positive polarity of the discharge in the form of flashes of lightning connecting the distance between the electrodes and the increase of flash currents are also more and more, while when given the negative polarity of arc discharge in the form of flash of lightning but with increasing arc discharge current look like Mini sun. This happens because the temperature at the time of the syringe is treated as a larger cathode because the ion particles that strike the cathode are very radical to erode syringes such as NO +, O +, N + and are highly reactive.

Keywords: arc discharge, point to plane reactor, syringe, point electrode, mini sun.