Transformations of neutral particles in the discharge plasma in inert gases with water vapor and deuterium

Desulfurization and Denitrification processes in two pulsed discharge plasma systems (NO/SO2/N2/O2/H2O and NO/SOSubscript text2/NSubscript text2/OSubscript text2) were simulated respectively, and then the removal characteristics of these two gas systems were analyzed. The results show that NO can be completely removed when the residence time is close to 1.3 s and SOSubscript text2 removal rate is 61.5% when the residence time reaches 3 s in a system containing water vapor (HSubscript text2O). When the system does not contain water vapor, NO removal rate is still much high, but SOSubscript text2 removal rate is approximately zero. When OSubscript text2 concentration is increased, NO removal velocity will be faster and the peak of the concentration curve of NOSubscript text2 will be higher. NO removing velocity is much faster in a system containing water vapor than that in a system without water vapor when both systems have almost the same OSubscript text2 concentration.

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Emission characteristics of a high-power glow discharge plasma in a mixture of inert gases with bromine and iodine vapor

Optics and Spectroscopy ◽

10.1134/s0030400x06020081 ◽

2006 ◽

Vol 100 (2) ◽

pp. 200-203 ◽

Cited By ~ 3

Author(s):

A. K. Shuaibov ◽

I. A. Grabovaya

Keyword(s):

Glow Discharge ◽

High Power ◽

Discharge Plasma ◽

Inert Gases ◽

Glow Discharge Plasma ◽

Emission Characteristics ◽

Iodine Vapor

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NUMERICAL SIMULATION OF THE SWIRLED FLOW OF WATER STEAM PLASMA WITH ALUMINUM MICROPARTICLES

Journal of Dynamics and Vibroacoustics ◽

10.18287/2409-4579-2020-6-4-25-34 ◽

2021 ◽

Vol 6 (4) ◽

pp. 25-34

Author(s):

I. P. Zavershinskii ◽

D. P. Porfirev

Keyword(s):

Numerical Simulation ◽

Water Vapor ◽

Vortex Flow ◽

Discharge Plasma ◽

Pure Water ◽

Kinetic Scheme ◽

Molecular Complexes ◽

Aluminum Particles ◽

Water Steam ◽

Heating Source

A study of the discharge plasma with a vortex flow of an argon + water vapor mixture with aluminum particles in a tube of a plasma vortex reactor (PVR) was carried out. The parameters of the discharge, plasma, and working flow in the PVR have been measured. Spectral methods were used to estimate the electron temperature, rotational and vibrational temperatures of excited molecular complexes, the temperature of metal clusters, and the electron density of plasma. A kinetic scheme is proposed for calculating the operating modes in a reactor using a water vapor discharge with aluminum particles. Numerical simulation of a vortex flow of pure water vapor with aluminum particles in the presence of a heating source is carried out.

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Analysis of heat flow in a tube bank of a condenser considering the influence of air

Archives of Thermodynamics ◽

10.1515/aoter-2017-0019 ◽

2017 ◽

Vol 38 (3) ◽

pp. 119-134

Author(s):

Magda Joachimiak ◽

Damian Joachimiak ◽

Piotr Krzyślak

Keyword(s):

Water Vapor ◽

Heat Flow ◽

Thermal Cycle ◽

Static Pressure ◽

Inert Gases ◽

Inert Gas ◽

Vapor Flow ◽

Vapor Mixture ◽

Flow Conditions ◽

Tube Bank

Abstract The pressure of wet water vapor inside a condenser has a great impact on the efficiency of thermal cycle. The value of this pressure depends on the mass share of inert gases (air). The knowledge of the spots where the air accumulates allows its effective extraction from the condenser, thus improving the conditions of condensation. The condensation of water vapor with the share of inert gas in a model tube bank of a condenser has been analyzed in this paper. The models include a static pressure loss of the water vapor/air mixture and the resultant changes in the water vapor parameters. The mass share of air in water vapor was calculated using the Dalton’s law. The model includes changes of flow and thermodynamic parameters based on the partial pressure of water vapor utilizing programmed water vapor tables. In the description of the conditions of condensation the Nusselts theory was applied. The model allows for a deterioration of the heat flow conditions resulting from the presence of air. The paper contains calculations of the water vapor flow with the initial mass share of air in the range 0.2 to 1%. The results of calculations clearly show a great impact of the share of air on the flow conditions and the deterioration of the conditions of condensation. The data obtained through the model for a given air/water vapor mixture velocity upstream of the tube bank allow for identification of the spots where the air accumulates.

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Formation of monochlorides of heavy inert gases in a high-frequency transverse discharge plasma

Optics and Spectroscopy ◽

10.1134/s0030400x08040085 ◽

2008 ◽

Vol 104 (4) ◽

pp. 534-539 ◽

Cited By ~ 3

Author(s):

A. K. Shuaibov ◽

I. V. Shevera

Keyword(s):

High Frequency ◽

Discharge Plasma ◽

Inert Gases ◽

Transverse Discharge

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Non Catalytic Methane Formation from Syngas in the Dielectric Barrier Discharge Plasma, Initiated by Microsecond Pulses

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.712.71 ◽

2016 ◽

Vol 712 ◽

pp. 71-75

Author(s):

E. Litvishko ◽

Alexei Ivanov ◽

M. Goreshnev

Keyword(s):

Dielectric Barrier Discharge ◽

Discharge Plasma ◽

Barrier Discharge ◽

Gaseous Mixture ◽

Inert Gases ◽

Methane Formation ◽

Dielectric Barrier Discharge Plasma ◽

Dielectric Barrier ◽

Syngas Conversion ◽

Barrier Discharge Plasma

In this study, the principal possibility of methane formation from syngas (the mixture of hydrogen and carbon monoxide) in the dielectric barrier discharge plasma was shown. The results of syngas conversion under microsecond pulses (amplitude up to 12 kV and frequency of 1000Hz) treatment in the five-tube reactor were discussed. The dependence of the methane formation on the volume flow rate and the energy input were studied. Also effect of inert gases (by the example of nitrogen) addition in the initial gaseous mixture on the methane formation was investigated.

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