Discharge processes of NO gas using bi-directional pulsed voltage

Summary form only given, as follows. Electrical discharge method has been used to remove the noxious flue-gas. In removing the flue-gas, it is important to dissociate or ionize the atoms and molecules by the collisions with energetic electrons and it produces the radicals that are used to decompose the pollutants. For that purpose, a bi-directional pulsed voltage is used to produce lots of energetic electrons efficiently and increase the power efficiency. The experiment is performed with changing the pulsewidth and repetition rate under the fixed applied voltage. Also the particle-mesh model coupling the NGP (nearest-gridpoint) to FEM (finite element method) is used to simulate the spatial-temporal variation of the electric field for the streamer in discharge tube. Comparing the simulation results with the experiment results, the optimal condition for the high-efficient removal of a large capacity of flue-gas will be investigated.