Theoretical investigation of ozone production in negative corona discharge

Mennad, Boufeldja; Harrache, Z.; Aid, Driss Amir; Boutarfaïa, Ahmed

doi:10.1016/j.cap.2010.04.013

Cited by 29 publications

(9 citation statements)

References 22 publications

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“…And the former is 1.54 times more than the latter. The overall trends for temporal evolution of these species are consistent with results reported by Mennad [13]. Their discrepancies are caused by different reactors and discharge patterns.…”

Section: Temporal Evolution Of Species Densitysupporting

confidence: 91%

“…To make the simulation tractable, subsets of reactions are usually employed in all models. For example, Mennad [13] developed a relatively comprehensive model that involves 15 species and 103 reactions to investigate the temporal evolution of each species in wire-cylinder negative corona discharge. Eliasson [14] employed 16 species and 70 reactions in his model and demonstrated that the excited species are essential in ozone production using a parallelplate DBD system.…”

Section: Computational Domain and Chemistrymentioning

confidence: 99%

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A numerical study of species and electric field distributions in pulsed DBD in oxygen for ozone generation

Wei

Peng

et al. 2016

Vacuum

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Section: Temporal Evolution Of Species Densitysupporting

confidence: 91%

Section: Computational Domain and Chemistrymentioning

confidence: 99%

A numerical study of species and electric field distributions in pulsed DBD in oxygen for ozone generation

Wei

Peng

et al. 2016

Vacuum

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“…O − 3 is the primary negative ion most of the time, but O − 2 density reaches the peak among all negative ions. The same conclusion was drawn for pure oxygen by Mennad [29] . O − 3 ions are formed via electron transfer reactions R29 and R30.…”

Section: Temporal Evolution Of Species Concentrationssupporting

confidence: 77%

Dynamic Characteristics of Positive Pulsed Dielectric Barrier Discharge for Ozone Generation in Air

Wei

(彭邦发)

2016

Plasma Sci. Technol.

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A comprehensive dynamic model consisting of 66 reactions and 24 species is developed to investigate the dynamic characteristics of ozone generation by positive pulsed dielectric barrier discharge (DBD) using parallel-plate reactor in air. The electron energy conservation equation is coupled to the electron continuity equation, the heavy species continuity equation, and Poisson's equation for a better description. The reliability of the model is experimentally confirmed. The model can be used to predict the temporal and spatial evolution of species, as well as streamer propagation. The simulation results show that electron density increases nearly exponentially in the direction to the anode at the electron avalanche. Streamer propagation velocity is about 5.26×10 4 m/s from anode to cathode in the simulated condition. The primary positive ion, negative ion, and excited species are O + 2 , O − 3 and O2( 1 ∆g) in pulsed DBD in air, respectively. N2O has the largest density among nitrogen oxides. e and N + 2 densities in the streamer head increase gradually to maximum values with the development of the streamer. Meanwhile, the O + 2 , O, O3, N2(A 3 Σ) and N2O densities reach maximum values in the vicinity of the anode.

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“…When O 2 is broken into individual oxygen atoms, which combine with other O 2 , the O 3 is formed [12]. Its molecule undergoes a spontaneous dissociation (high O 3 instability) process, again resulting in O 2 formation [13,14].…”

Section: Ozone Gasmentioning

confidence: 99%

Effectiveness of Ozone Gas Application Methods against Combined Multi-Contaminants in Food

Christ¹,

Savi²,

Scussel³

2017

fph

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Despite the ozone (known as GRAS -generally recognized as safe) gas treatments published for each food living organism or chemical decontamination, they are not necessarily present or contaminate food individually. Most of the time, they are present all together. Therefore, the most important point, regarding an O 3 application method to be chosen is its effectiveness to all contaminants that may be in the target food. Therefore, ozone gas decontamination methods that gather combined multi-contaminants and their effectiveness in food were surveyed. Both, for inactivation of living organisms (insects, mites, fungi, yeasts and bacteria) and degradation of toxic compounds (pesticides and mycotoxins). They are the main need for an effective and comprehensive commercial decontamination application. This review brings details on O 3 formation energy sources, its application conditions (concentration / time of exposure), container characteristics (volume / material type / sealed or hermetic) and effectiveness for different food (type / contamination level / batch size/moisture content). From the studies and data reported, ozone has shown to be an efficient green agent for combined multi-decontamination, thus prolonging the food storage and shelf life. It does not cause/produce adverse effects on food quality.

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Theoretical investigation of ozone production in negative corona discharge

Cited by 29 publications

References 22 publications

A numerical study of species and electric field distributions in pulsed DBD in oxygen for ozone generation

A numerical study of species and electric field distributions in pulsed DBD in oxygen for ozone generation

Dynamic Characteristics of Positive Pulsed Dielectric Barrier Discharge for Ozone Generation in Air

Effectiveness of Ozone Gas Application Methods against Combined Multi-Contaminants in Food

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