Evaluation of Energy Efficiency on Toluene Decomposition via Nanosecond Pulse Dielectric Barrier Discharge

Nanosecond pulse dielectric barrier discharge (NPDBD) exhibits high energy efficiency, making it a promising approach for volatile organic compound (VOC) decomposition. However, accurately measuring the energy delivered to the plasma in nanosecond pulse systems is difficult due to the influence of parasitic components inherent in the system's electrical characteristics. This study develops and validates methods for measuring the delivered energy in NPDBD, ensuring accurate energy efficiency measurements. Precise discharge current measurement methods are proposed by comparing experimental and simulation results. Toluene decomposition experiments, conducted under varying applied voltage and pulse width conditions, reveal an energy efficiency range of 35–55 g/kWh. The validated energy measurement methods provide a foundation for the removal of VOCs in NPDBD systems, leading to more efficient electrical conditions for industrial applications.