Effect of V-I Characteristics on Discharge of Non Thermal Plasma for Surface Decontamination of Bread Slices

Experimental investigations of Non Thermal Plasma (NTP) generated by parallel plate dielectric discharge system was conducted to study the effect of Voltage-Current (V-I) characteristics for the surface decontamination of bread slices. The experiments, to study V-I characteristics were conducted by high voltage power supply (0-11kV, 50Hz). The V-I curve and power consumed for various electrode distance were studied. A homogeneous uniform discharge was observed with electrode gaps ranging from 2 to 10 cm. The result shows that the power consumed in NTP system for generation of uniform glow plasma was less and is increase when the gap between electrodes increased. A slice of bread were also tested under different voltage and current inputs for surface decontamination.