تصميم وبناء منظومة تفريغ حاجز العزل الكهربائي النتاج البالزما غير الحرارية ودراسة خواصها الكهربائية

Abstract

In this research the design and construction of dielectric barrier discharge system was done. It consist of two cylindrical electrode made of cupper with diameter (50 mm), the electrode was surrounding by Teflon with thickness (10 mm). The two electrodes were fixed such that one of them can be moved vertically to change the distance between the electrodes. The two electrodes were connected to high power Ac voltage. One of the electrodes was covered by dielectric material; however, we used two kind of dialectic (glass and Teflon) with thickness (1, 2, 3) mm. The electrical characteristic of the system were studied from (I - V) curves by changing gap distance , thickness of dielectric, frequency of the applied voltage kind of the dielectric distance, thickness of the dielectric and the frequency. Also, the breakdown voltage of the system was studied with gap distance and thickness of the dielectric, it is observed that increases the breakdown voltage with increasing gap distance and thickness of the dielectric. It is found that decreasing the discharge current when the Teflon is used as a dielectric sheet instead of glass, while increasing of the breakdown voltage.