Study on Q-V Lissajous figures in nanosecond-pulsed surface discharge

Jiang, Hui; Shao, Tao; Zhang, Cheng; Li, Wenfeng; Yan, Ping; Schamiloglu, E.

doi:10.1109/ipmhvc.2012.6518800

Cited by 4 publications

(5 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The external capacitor of 10 nF allows us to evaluate the electrical charge Q pl (t) and, therefore, the discharge power, or absorbed power (P abs ) from the plasma, via the Lissajous method [30][31][32][33][34][35][36][37]. This absorbed power divided by the gas flow rate is the specific-energy input (SEI).…”

Section: Absorbed Powermentioning

confidence: 99%

Routes to increase the conversion and the energy efficiency in the splitting of CO₂by a dielectric barrier discharge

Özkan

Bogaerts

Reniers

2017

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

We present here routes to increase the CO 2 conversion into CO using an atmospheric pressure dielectric barrier discharge. The change in conversion as a function of simple plasma parameters, such as power, flow rate, but also frequency, on-and-off pulse of the power, thickness and chemical nature of the dielectric, wall and gas temperature, is described. By means of an in-depth electrical characterization of the discharge (effective plasma voltage, dielectric voltage, plasma current, number and lifetime of the microdischarges), combined with infrared analysis of the walls of the reactor, optical emission spectroscopy for the gas temperature, and mass spectrometry for the CO 2 conversion, we propose a global interpretation for the effect of all the experimental parameters on the conversion and efficiency of the reaction.

show abstract

Section: Absorbed Powermentioning

confidence: 99%

Routes to increase the conversion and the energy efficiency in the splitting of CO₂by a dielectric barrier discharge

Özkan

Bogaerts

Reniers

2017

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

“…A Tektronix DPO 3032 oscilloscope is used to perform electrical measurements (during T ON ). The first channel is dedicated to the monitoring of the high voltage (V 1 ) with a Tektronix P6015A probe, whilst the second channel allows the measuring of the voltage passing through a capacitor, to obtain the power absorbed by the plasma via the Lissajous method [54][55][56][57][58], or through a Rogowski coil (Pearson 2877) to probe the current. The capacitor or the Rogowski coil is placed in series with the DBD.…”

Section: Electrical Measurementsmentioning

confidence: 99%

DBD in burst mode: solution for more efficient CO₂conversion?

Ozkan

Dufour

Silva

et al. 2016

Plasma Sources Sci. Technol.

View full text Add to dashboard Cite

CO2 conversion into value-added products has gained significant interest over the few last years, as the greenhouse gas concentrations constantly increase due to anthropogenic activities. Here we report on experiments for CO2 conversion by means of a cold atmospheric plasma using a cylindrical flowing dielectric barrier discharge (DBD) reactor. A detailed comparison of this DBD ignited in a so-called burst mode (i.e. where an AC voltage is applied during a limited amount of time) and pure AC mode is carried out to evaluate their effect on the conversion of CO2 as well as on the energy efficiency. Decreasing the duty cycle in the burst mode from 100% (i.e. corresponding to pure AC mode) to 40% leads to a rise in the conversion from 16-26% and to a rise in the energy efficiency from 15 to 23%. Based on a detailed electrical analysis, we show that the conversion correlates with the features of the microfilaments. Moreover, the root-mean-square voltage in the burst mode remains constant as a function of the process time for the duty cycles <70%, while a higher duty cycle or the usual pure AC mode leads to a clear voltage decay by more than 500 V, over approximately 90 s, before reaching a steady state regime. The higher plasma voltage in the burst mode yields a higher electric field. This causes the increasing the electron energy, and therefore their involvement in the CO2 dissociation process, which is an additional explanation for the higher CO2 conversion and energy efficiency in the burst mode.

show abstract

“…Both in ordinary DBDs [1][2][3][4][16][17][18] (a) E-mail: st@mail.iee.ac.cn (b) E-mail: Lomaev@loi.hcei.tsc.ru and in SDBDs [13,14,19,20] no monotonic time behaviour of discharge current was observed and analyzed. In our previous papers [21,22], it was found that in case of nanosecond-pulse SDBD, the first discharge current pulse was composed of two spikes affected by voltage amplitude and pulse repetition rate, interelectrode gap spacing and electrodes'width. The objective of this work is to carry out the study of this discharge regime and to explain the time behaviour of the discharge current pulse.…”

mentioning

confidence: 99%

“…Therefore, it is reasonable to assume that the first pulse spike maybe results from the displacement current. However, some calculations show that the discharge current still includes two obvious pulse spikes when the displacement current is subtracted from the total current [22]. Some published papers have shown that the discharges may take on a type of fast ionization waves under electrical breakdown conditions in a long discharge tube [26,27] and during the first stage of high-current sliding discharge [28], and the phase of charging of SDBD is similar to these discharges.…”

mentioning

confidence: 99%

“…According to Kirchhoff's law the relation of φ(x, t) with the voltage drop on the actuator U (t) is as follows: where U P lasma (x, t), U c (x, t) are the voltage drops on the plasma layer and on the dielectric barrier at distance x from the HV potential electrode, respectively. It is well known that the length of the plasma area is proportional to the amplitude of the applied voltage [3,21,22,30]. It allows us to use a linear approximation of U P lasma (x, t) and to write the expression for φ(x, t):…”

mentioning

confidence: 99%

See 1 more Smart Citation

Time behaviour of discharge current in case of nanosecond-pulse surface dielectric barrier discharge

Shao¹,

Jiang²,

Zhang³

et al. 2013

EPL

View full text Add to dashboard Cite

Nanosecond-pulse surface dielectric barrier discharge is a promising method used for airflow control application. In our letter, atmospheric-pressure plasmas in open air are produced in a configuration of discharge actuators by repetitive nanosecond pulses. The electrical parameters including applied voltage, total discharge current, and transported charge are measured and analysed, especially it is aimed at the time behaviour of the total discharge current. Experimental results show that the total discharge current pulse includes two obvious spikes during the rise time of the applied pulse voltage. According to the simulation, it is concluded that the first current spike is due to the discharge propagation in the form of wave ionization and displacement current. The second current spike is caused by the repeated re-ignition of the surface dielectric barrier discharge on the area covered previously by the wave ionization.

show abstract

Study on Q-V Lissajous figures in nanosecond-pulsed surface discharge

Cited by 4 publications

References 15 publications

Routes to increase the conversion and the energy efficiency in the splitting of CO₂by a dielectric barrier discharge

Routes to increase the conversion and the energy efficiency in the splitting of CO₂by a dielectric barrier discharge

DBD in burst mode: solution for more efficient CO₂conversion?

Time behaviour of discharge current in case of nanosecond-pulse surface dielectric barrier discharge

Contact Info

Product

Resources

About

Study on Q-V Lissajous figures in nanosecond-pulsed surface discharge

Cited by 4 publications

References 15 publications

Routes to increase the conversion and the energy efficiency in the splitting of CO2by a dielectric barrier discharge

Routes to increase the conversion and the energy efficiency in the splitting of CO2by a dielectric barrier discharge

DBD in burst mode: solution for more efficient CO2conversion?

Time behaviour of discharge current in case of nanosecond-pulse surface dielectric barrier discharge

Contact Info

Product

Resources

About

Routes to increase the conversion and the energy efficiency in the splitting of CO₂by a dielectric barrier discharge

Routes to increase the conversion and the energy efficiency in the splitting of CO₂by a dielectric barrier discharge

DBD in burst mode: solution for more efficient CO₂conversion?