Ozone generation efficiency is often used as an indictor to evaluate the performance of DBD reactors. This study aims to provide a general guideline for designing cylindrical DBD reactors with better performance based on the ozone generation efficiency. In addition to experiments, a numerical model is developed in this study. Specific energy density, defined as the ratio of deposited power to f...

noncatalytic and nonoxidative conversion of methane in a dielectric barrier discharge (dbd) reactor is examined at different temperatures, gas residence times and input powers. in addition, the ratio of methane to helium as a diluant, is changed in the range of 0.6 to 1.8. results show significant synergetic effects of plasma, temperature and helium on the methane conversion and c2+ selectiviti...

Aerosol particle charging is involved in many scientific and industrial applications and especially in measurements based on electrostatic classification. Non-thermal Atmospheric Pressure Electrical Discharges are an efficient way to charge particles. We report here the charge distribution of aerosol at the exit of a Dielectric Barrier Discharges (DBD) and discuss the potential applications. Th...

We succeed in generating an atmospheric and high pressure homogeneous dielectric barrier discharge (DBD) in dry air by using a simple DBD device. So far, we have tried to apply the homogeneous DBD to an ozonizer and found that the ozone yield is higher by the homogeneous discharge mode than by the conventional filamentary discharge mode in larger specific input energy region. In this work, we i...

Noncatalytic and nonoxidative conversion of methane in a dielectric barrier discharge (DBD) reactor is examined at different temperatures, gas residence times and input powers. In addition, the ratio of methane to helium as a diluant, is changed in the range of 0.6 to 1.8. Results show significant synergetic effects of plasma, temperature and helium on the methane conversion and C2+</s...

A fluidized bed system combining two circulating fluidized bed reactors is proposed and investigated for chemical looping combustion using metal oxides as oxygen carriers. The global solids loop starts in one of the two reactors (primary reactor) where solids are entrained, separated from the gas in a cyclone and sent to the other reactor (secondary reactor) via a fluidized loop seal. From the ...

BACKGROUND Applications of the power-to-gas principle for the handling of surplus renewable electricity have been proposed. The feasibility of using hydrogenotrophic methanogens as CH4 generating catalysts has been demonstrated. Laboratory and scale-up experiments have corroborated the benefits of the CO2 mitigation via biotechnological conversion of H2 and CO2 to CH4. A major bottleneck in the...

The decomposition of trichloroethylene (TCE) by non-thermal plasma was investigated in a dielectric barrier discharge (DBD) reactor with a copper rod inner electrode and compared with a plasma-catalytic reactor. The particularity of the plasma-catalytic reactor is the inner electrode made of sintered metal fibers (SMF) coated by transition metal oxides. In order to optimize the geometry of the ...

In this study, sterilization of tubular medical instruments such as catheter and breathing circuit was studied using a wire-type dielectric barrier discharge(DBD) under atmospheric pressure condition. To investigate sterilization factors of DBD under the air condition, we carried out the sterilization experiments using Geobacillus stearothermophilus spores under various gas conditions, such as ...