Voltage Polarity Influence on NTP Energy Efficiency of Point-to-Point Reactor

This paper presents an analysis of the influence of different parameters on energy efficiency of a spray, point-to-point, non-thermal plasma (NTP) reactor in plasma activated water generation. The polarity of the DC pulse power supply is assessed for different input parameters such the frequency (60, 150 and 250 Hz), water flowrate (5, 10, 15 and 20 mL/min) and gas flowrate (1 and 2 L/min Ar). There are also presented the values of important electrical parameters of the plasma such the average power or discharge energy. The concentration of hydrogen peroxide generated into plasma activated water was considered as indicator of the energy efficiency.