Characteristics of dielectric barrier discharge reactor for material treatment

Kostov, K. G.; Honda, Roberto Yzumi; Alves, Leandro Marcos Salgado; Kayama, M. E.

doi:10.1590/s0103-97332009000300015

Cited by 70 publications

(36 citation statements)

References 11 publications

(11 reference statements)

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“…To evaluate the consumed power in the DBD cell, it is wrong to express it as the product of current and voltage because of the capacitive reactance of the cell and the filamentary behavior of the current. In the present work, the consumed power has been measured using Lissajous method [25] where the voltage difference between the two electrodes has been measured as a function of the charge on the electrodes (Lissajous curve). Figure 3 shows both the discharge current and the consumed power in the DBD cell as a function of the discharge voltage.…”

Section: Resultsmentioning

confidence: 99%

Limiting the Migration of Bisphenol A from Polycarbonate Using Dielectric Barrier Discharge

Soliman¹,

Samir²,

Hassan³

et al. 2014

OJSTA

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Dielectric barrier discharge is used as a cheap technique for surface treatment of polycarbonate. The discharge system is working in open air at atmospheric pressure. The treatments are carried out at low discharge powers (1.5 and 2 W) for treatment time (2.5 -15 min). The treated samples show decrease in the contact angle and increase in the crystallinity, thermal stability and surface roughness. The effect of ozone on the increase in the oxygen containing functional groups is discussed. The treatment process shows effective limitation of the migration of bisphenol A from the surface of polycarbonate due to the cross linking. Zero migration of bisphenole A is recorded as the sample is treated for 7.5 min. The treatment process is found to be very efficient with very low cost.

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Section: Resultsmentioning

confidence: 99%

Limiting the Migration of Bisphenol A from Polycarbonate Using Dielectric Barrier Discharge

Soliman¹,

Samir²,

Hassan³

et al. 2014

OJSTA

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“…The discharge power can be given by Eq. (8) [16,17]: (8) where, V RMS is the root mean square of the voltage R g is the equivalent resistance of the reactor C g is the capacitance of the discharge gap C d is the absolute capacitance of the dielectric layers…”

Section: Effect Of Input Parameters On Reactionmentioning

confidence: 99%

Process conditions for complete decomposition of CHF3 in a dielectric barrier discharge reactor

Nguyen

Lee

2016

Korean J. Chem. Eng.

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Plasma decomposition of CHF 3 was investigated using a dielectric barrier discharge immersed in an electrically insulating oil bath in a mixture of CHF 3 , O 2 , and N 2 . CHF 3 was well decomposed under a relatively high applied voltage in an atmospheric pressure plasma system. The main by-product was CO 2 and its selectivity increased with a decrease in the CHF 3 concentration in the feed. Complete decomposition of CHF 3 was achieved at a typical process range: an applied voltage ≥ 7.0 kVp, an initial CHF 3 flow rate of 3 ml/min, and a total flow rate of 500 ml/min. The value of energy efficiency and energy density at the center range for the complete decomposition of CHF 3 was 0.01 mmol/kJ and 6.00 kWh/Nm 3 , respectively.

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“…In many cases classical 50 or 60 Hz supplies are used with high-voltage transformers [7,8]. Many different voltage waveforms are used for plasma system supply [9,10].…”

Section: Power Electronic Supply Unitmentioning

confidence: 99%

Study on the influence of output inductance on DBD plasma uniformity

Hołub¹

2014

Archives of Electrical Engineering

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Abstract:The presented work gives an overview on simulation and experimental results of the power supply parameters' influence on DBD discharge uniformity. The proposed study is about the use of quasi-pulsed, power electronic power supply and a saturable inductor in series with the discharge cell [1]. The simulation results are presented with a parallel DBD reactor model with linear critical voltage distribution. A more uniform current waveform is observed, however, due to small reactor capacitances no streamer formation could be verified in calculations. An experimental test stand was prepared with a double dielectric barrier discharge arrangement. The experimental results are presented with regard to the electrical oscilloscope waveforms and ICCD camera imaging. A more homogenous plasma was observed in the case of saturable inductor with saturation current set at the point of discharge formation. Two possible mechanisms are connected with this phenomenon -inductive element current support during discharge and/or current rise-time limitation [1].

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Characteristics of dielectric barrier discharge reactor for material treatment

Cited by 70 publications

References 11 publications

Limiting the Migration of Bisphenol A from Polycarbonate Using Dielectric Barrier Discharge

Limiting the Migration of Bisphenol A from Polycarbonate Using Dielectric Barrier Discharge

Process conditions for complete decomposition of CHF3 in a dielectric barrier discharge reactor

Study on the influence of output inductance on DBD plasma uniformity

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