Flame images indicating combustion enhancement by dielectric barrier discharges

Stange, Sy; Kim, Yong-Ho; Ferreri, V.W.; Rosocha, Louis A.; Coates, D.M.

doi:10.1109/tps.2005.845940

Cited by 45 publications

(22 citation statements)

References 3 publications

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“…In this context, Dielectric Barrier Discharge (DBD) assisted gas-phase O 3 generation remains the most convenient and simple to operate. Thus, research on its further technical and scientific improvements is sustained even today, after its inception one and a half century ago (Chen et al 2010;Francke et al 2003;Jodzis et al 2011b; Kogelschatz et al 1997;Schönbein 1840;Siemens 1857;Stange et al 2005;Vezzu et al 2009). A few recent publications reveal detailed approach of such efforts (Jodzis et al 2011a;Karuppiah et al 2012;Krogh et al 2008;Šimek et al 2010;Sun and Zhang 2009;Teranishi et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Ozone Generation from Argon-Oxygen Mixtures in Presence of Different Packing Materials within Dielectric Barrier Discharge Gap

Dwivedi

Toley

Dey

et al. 2013

Ozone: Science & Engineering

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Assessments of ozone yield and concentration in DielectricBarrier Discharge of argon-oxygen mixtures in presence of various packing materials are discussed. These include zeolite molecular sieve 13X pellets, Pyrex beads, Pyrex wool, and porous TiO 2 -beads, which presented differential reactive surfaces, nano cavities, photo-catalysis, and dissimilar ionic environments. Their utility was evaluated in conjunction with varied gas composition, flow rate, and electrical inputs. In a mixture of 3-21% O 2 in argon, the ozone concentration ranged between 16-980 ppm, simultaneous measurements of in situ energy dissipation revealed its yield, G(O 3 ) to change independently from 0.002 to 2.020 μmol J −1 . TiO 2 packing emerged as the most versatile material to produce O 3 in high concentration and yield.

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Section: Introductionmentioning

confidence: 99%

Ozone Generation from Argon-Oxygen Mixtures in Presence of Different Packing Materials within Dielectric Barrier Discharge Gap

Dwivedi

Toley

Dey

et al. 2013

Ozone: Science & Engineering

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“…It is seen that the present method has a better spatial resolution to track the movement and the size of the plasma-assisted flame. The highspeed camera yields high-quality images of the developing plasma-assisted flames [36] and the ECT system is applied to visualize the movement of flames at the cross section of the combustor, which are compared in Fig. 5.…”

Section: A Imaging the Plasma-assisted Combustionmentioning

confidence: 99%

Direct Measurements of Permittivity of Plasma-Assisted Combustion Using Electrical Capacitance Tomography

Chen

Jia

Mao

et al. 2016

IEEE Trans. Plasma Sci.

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The permittivity distribution and the flame development in a closed plasma-assisted combustor were investigated using an electrical capacitance tomography system. The experiments were conducted at a pressure of 1 atm and at different equivalence ratios. I-V curves measured by the Langmuir probe were utilized to estimate the floating potential (−40 to −10 V) and the electron local parameters (T e and n e ) in the plasma-assisted flames. The results showed that the electron concentration reached the maximum at a location close to the plasma injection point where the primary reaction region of the CH 4 -air premixed flame was located. Major species measurement by emission spectrometer combined with the probe measurement revealed that the kinetic enhancement was more significant than the thermal enhancement in the plasma-assisted combustion. Moreover, the dependence of combustion kinetics including electron/ion concentration and temperature on the flame permittivity was verified. The quantitative permittivity data obtained in this study provide a good validation target for modeling of the electric field in plasma-assisted combustion.

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“…On the other hand, for a plasma produced in the fuel stream, the main kinetic path that is being activated is cracking of the large fuel molecules into smaller fragments, large unsaturated or branched hydrocarbons, and H 2 [10,21]. Similarly, when the plasma is produced in a premixed reactant stream, the main effect is to pre-oxidize the fuel with the subsequent heat release [22] and partial fuel conversion into H 2 , CO [8,23], alcohols, aldehydes and peroxides [1].…”

Section: Plasma Sources Science and Technologymentioning

confidence: 99%

Localized pulsed nanosecond discharges in a counterflow nonpremixed flame environment

Guerra-Garcia

Martı́nez-Sánchez

Miles

et al. 2015

Plasma Sources Sci. Technol.

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Flame images indicating combustion enhancement by dielectric barrier discharges

Cited by 45 publications

References 3 publications

Ozone Generation from Argon-Oxygen Mixtures in Presence of Different Packing Materials within Dielectric Barrier Discharge Gap

Ozone Generation from Argon-Oxygen Mixtures in Presence of Different Packing Materials within Dielectric Barrier Discharge Gap

Direct Measurements of Permittivity of Plasma-Assisted Combustion Using Electrical Capacitance Tomography

Localized pulsed nanosecond discharges in a counterflow nonpremixed flame environment

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