Study of falling water droplet in atmospheric dielectric barrier discharge plasma

In this research, the water droplet behavior in the presence of dielectric barrier discharge (DBD) plasma is studied. The atmospheric DBD plasma column of 6 cm length is maintained inside a quartz tube between two electrodes separated 25 mm apart. The water droplets of milli meter sizes are passed through the DBD plasma and the droplets are observed using highspeed camera. The change in the droplet size is measured and compared with the theoretical value. The gas temperature and the temperature of the plasma is measured using thermocouple and optical emission spectrum. The initial observations show that there is a change in the droplet size. Further analysis and the measurement of the reactive species present in the plasma treated droplets through various chemical tests are planned to be performed.