Generating diffuse discharge via repetitive nanosecond pulses and line-line electrodes in atmospheric air

2013 ◽  
Vol 84 (10) ◽  
pp. 105105 ◽  
Keyword(s):  
Atmospheric Air ◽  
Diffuse Discharge ◽  
Nanosecond Pulses

An atmospheric air gas-liquid diffuse discharge excited by bipolar nanosecond pulse in quartz container used for water sterilization

2013 ◽  
Vol 103 (26) ◽  
pp. 264108 ◽  
Author(s):  
Sen Wang ◽  
De-Zheng Yang ◽  
Wen-Chun Wang ◽  
Shuai Zhang ◽  
Zhi-Jie Liu ◽  
...  
Keyword(s):  
Nanosecond Pulse ◽  
Atmospheric Air ◽  
Diffuse Discharge

Diffuse discharge produced by repetitive nanosecond pulses in open air, nitrogen, and helium

2013 ◽  
Vol 113 (9) ◽  
pp. 093301 ◽  
Author(s):  
Victor F. Tarasenko ◽  
Evgeni Kh. Baksht ◽  
Mikhail V. Erofeev ◽  
Yuliya V. Shutko
Keyword(s):  
Diffuse Discharge ◽  
Nanosecond Pulses

HIGH-CURRENT DIFFUSE DISCHARGE WITH THE EXPLOSIVE CATHODE PROCESS

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-281-C7-282
Author(s):  
A. P. Kchuzeev ◽  
Yu. D. Korolev ◽  
V. A. Kuzmin ◽  
G. A. Mesyats ◽  
V. P. Rotshtein ◽  
...  
Keyword(s):  
High Current ◽  
Diffuse Discharge ◽  
Cathode Process

WET BURNING – THE MODERN TREND IN ENVIRONMENTAL BENIGN FUEL COMBUSTION AND IN SOLUTION TO THE PROBLEM OF SUSTAINABLE DEVELOPMENT OF THE POWER GENERATION

2018 ◽  
pp. 96-117 ◽  
Author(s):  
B. S. Soroka
Keyword(s):  
Numerical Simulation ◽  
Nitrogen Oxides ◽  
Chemical Kinetics ◽  
Fuel Combustion ◽  
Transport Processes ◽  
Cfd Modeling ◽  
Furnace Chamber ◽  
Modern Trend ◽  
Atmospheric Air ◽  
No Formation

The article considers the role and place of water and water vapor in combustion processes with the purpose of reduction the effluents of nitrogen oxides and carbon oxide. We have carried out the complex of theoretical and computational researches on reduction of harmful nitrogen and carbon oxides by gas fuel combustion in dependence on humidity of atmospheric air by two approaches: CFD modeling with attraction of DRM 19 chemical kinetics mechanism of combustion for 19 components along with Bowman’s mechanism used as “postprocessor” to determine the [NO] concentration; different thermodynamic models of predicting the nitrogen oxides NO formation. The numerical simulation of the transport processes for momentum, mass and heat being solved simultaneously in the united equations’ system with the chemical kinetics equations in frame of GRI methane combustion mechanism and NO formation calculated afterwards as “postprocessor” allow calculating the absolute actual [CO] and [NO] concentrations in dependence on combustion operative conditions and on design of furnace facilities. Prediction in frame of thermodynamic equilibrium state for combustion products ensures only evaluation of the relative value of [NO] concentration by wet combustion the gas with humid air regarding that in case of dry air – oxidant. We have developed the methodology and have revealed the results of numerical simulation of impact of the relative humidity of atmospheric air on harmful gases formation. Range of relative air humidity under calculations of atmospheric air under impact on [NO] and [CO] concentrations at the furnace chamber exit makes φ = 0 – 100%. The results of CFD modeling have been verified both by author’s experimental data and due comparing with the trends stated in world literature. We have carried out the complex of the experimental investigations regarding atmospheric air humidification impact on flame structure and environmental characteristics at natural gas combustion with premixed flame formation in open air. The article also proposes the methodology for evaluation of the nitrogen oxides formation in dependence on moisture content of burning mixture. The results of measurements have been used for verification the calculation data. Coincidence of relative change the NO (NOx) yield due humidification the combustion air revealed by means of CFD prediction has confirmed the qualitative and the quantitative correspondence of physical and chemical kinetics mechanisms and the CFD modeling procedures with the processes to be studied. A sharp, more than an order of reduction in NO emissions and simultaneously approximately a two-fold decrease in the CO concentration during combustion of the methane-air mixture under conditions of humidification of the combustion air to a saturation state at a temperature of 325 K.

Electrical Characteristics of Atmospheric Air Corona Plasma by Multi-pin Electrodes

2019 ◽  
Vol 14 (3) ◽  
pp. 226
Author(s):  
Khanit Matra ◽  
Yottana Tanakaran ◽  
Teerawat Temponsub ◽  
Suphanat Nimbua ◽  
Phanuwat Thab-in ◽  
...  
Keyword(s):  
Electrical Characteristics ◽  
Atmospheric Air ◽  
Corona Plasma
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