The largely isothermal surface plasma generation realized above can modify the nearwall flow structure by means of lorentzian collisions between the ionized fluid and the neutral fluid. Nonthermal dielectric barrier discharge generator sciencedirect. Dbds are known under different names like barrier discharge, silent discharge, ac discharge, normal pressure glow discharge, ozonizer discharge and display discharge. In this simple model the problem is reduced to 1d by assuming the dielectric gap is much smaller than the diameter of the plates. Many experimental and numerical studies were devoted to dielectric barrier discharge dbd in air, but no mathematical models were proposed, either for.
It has been exclusively related to ozone generation for a long time. In order to understand the reaction mechanisms of no removal in dielectric barrier discharge reactor, the effect of gas composition on plasma reduction of no was studied. Publishers pdf, also known as version of record includes final page. Dielectricbarrier discharges dbds comprise a specific class of highvoltage, ac, gaseous discharges that typically operate in the nearatmospheric pressure range. Pdf ozone production with dielectric barrier discharge. Dielectric barrier discharge in atmospheric air for di erent. Lopez, phd setoseto a u e s tyn hall university department of physics south orange, new jersey usa. Dielectric barrier discharge, ozone generation, and their. Problems of the active power definition in the barrier 163 discharge with dielectric of high specific capacity. Dielectric barrier lamps are discharge light sources having electrodes, but in which there is no direct contact between the discharge and the electrodes.
The dbd discharge has been generated in planar geometry reactor powered by ac voltage provided by conventional high voltage transformer. A discharge drift diffusive model according to the townsend avalanche is described and used to duplicate the plasma kinetics of a dbd actuator. Electrical characterization of dielectric barrier discharge. On the use of pulsed dielectric barrier discharges to. Since its first description in 2007, it has attracted much attention in such fields as biological analysis, food safety, massspectrometry imaging, forensic identification, and reaction monitoring for its advantages, e. Their history, discharge physics, and industrial applications ulrich kogelschatz1 receiued april 5, 2002. On right, the schematic diagram shows a typical construction of a dbd wherein one of the.
Low pressure characterization of dielectric barrier discharge actuators article pdf available in applied physics letters 10211 march 20 with 116 reads how we measure reads. Detailed investigations into the properties of this nonequilibrium discharge which can be conveniently operated at about atmospheric pressure led to a. Characterization of dielectric barrier discharge in air applying current measurement, numerical simulation and emission spectroscopy priyadarshini rajasekaran, nikita bibinov and peter awakowicz institute for electrical engineering and plasma technology, ruhruniversitat bochum, universitatstr. Pdf treatment of water by dielectric barrier discharge. This socalled dielectric barrier is responsible for a selfpulsing plasma operation and thus, the formation of. Ozone production with dielectric barrier discharge. Pdf dielectricbarrier discharges silent discharges are used on a large industrial scale. Abstract dielectric barrier discharge dbd with a grounded electrode sliding electrode on the same surface as the high voltage electrode three electrode. Direct nonoxidative methane conver sion by dielectric. Two plasma discharge modes are observed, regardless of the relative.
The peak to peak discharge voltage is recorded at varying discharge frequency for fixed driving power defined by vdd. Pdf low pressure characterization of dielectric barrier. Dielectric barrier discharge dbd plasmas and their applications. Carbon dioxide splitting in a dielectric barrier discharge. Dielectric barrier discharges dbds, also referred to as barrier discharges or silent discharges have for a long time been exclusively related to ozone generation. Ozone synthesis in the discharge with pulse supply. Characterization of dielectric barrier discharge in air. Application of dielectric surface barrier discharge for food storage. They found that several discharge stages could occur during a halfcycle of the driving oscillation, each producing a distinct.
Dielectric barrier discharge eagle harbor technologies. Effects and mechanism of atmosphericpressure dielectric. The air discharge gap between the dielectric layers was varied from 1. Single dielectric barrier discharge plasma enhanced. Dielectric barrier discharge dbd plasmas and their. Influence of plasma dielectric barrier discharge on oligomerization of carbon monoxide was shown. Effects of power source and humidity article pdf available in ieee transactions on plasma science 4410. Dielectric barrier discharge dbd is a typical nonequilibrium high pressure ac gas discharge. A dielectric barrier discharge plasma reactor has been designed and constructed. Electron current from an rf microdielectric barrier discharge. Dielectric barrier discharge plasma reactor springerlink. Generation of extended surface barrier discharge on dielectric. Methanol production in ac dielectric barrier discharge.
Gas flowrate was 3 cm 3 s for h 2 and 6 sm 3 s for co. The purpose of this paper is to study and design a nonthermal dielectric barrier discharge generator generated by a dc power supply, by designing two different. Yassine bellebna, rabah ouiddir, said nemmich, amar tilmatine apelec laboratory, djillali liabes university of sidi belabbes, algeria. Abstractdielectric barrier discharge dbd is the electrical discharge between the electrodes in the presence of an insulating barrier.
Characteristics of dielectric barrier discharge reactor for. Dielectric barrier discharge for surface treatment iopscience. Electrical characteristics and modeling of a filamentary. In order to overcome these problems, a single species dbd model for a point to plane configuration is presented in this paper. Effect of dielectric barrier discharge dbd plasma on the structure.
Intracellular electric fields produced by dielectric barrier. It has been used in many applications such as displays, mobile devices and solar cells. Effects and mechanism of atmosphericpressure dielectric barrier discharge cold plasma on lactate dehydrogenase ldh enzyme hao zhang, 1 zimu xu, 2 jie shen, 3, 4 xu li, 1 lili ding, 1 jie ma, 4 yan lan, 3, 4 weidong xia, a, 1, 2 cheng cheng, b, 3, 4, 5 qiang sun, 2 zelong zhang, 2 and paul k. Carbon dioxide splitting in a dielectric barrier discharge plasma. The dielectric is the key for the proper functioning of the discharge. They combine the aduantages of nonequilibrium plasma properties with the ease. Their history, discharge physics, and industrial applications article pdf available in plasma chemistry and plasma processing 231.
Their defining feature is the presence of dielectric layers that make it impossible for charges generated in the gas to reach the conducting electrode surfaces. In this experiment, singlelayer barrier tube plasma reactor was used to study the influence of o 2 and c 2 h 4 ethylene to no removal rate. A dynamic electrical model for homogeneous discharge has been put forward by liu and neiger 2003. The aluev of charge qcorresponds to the charge transferred in one discharge pulse in the case of the di use mode and to the summary charge of several most significant discharge current pulses in lamentary mode. Experimental investigation of the dielectric barrier. Dielectricbarrier discharge dbd is the electrical discharge between two electrodes separated by an insulating dielectric barrier. The reactor operating conditions for the desired reaction have been calculated using the dissociation of water molecules as a model reaction. Page 1 electrical characterization of dielectric barrier discharge dr. However, the electrical properties of a filamentary discharge are more complicated due to the presence of collective phenomenon. Our study was mainly focused on electrical characterization of micro discharges produced by dbd.
The dielectric barrier consisted of two glass slabs, which cover both reactor electrodes. Intensity control of dielectric barrier discharge filaments by matthew crawford paliwoda a thesis presented to the faculty of the graduate school of the missouri university of science and technology in partial fulfillment of the requirements for the degree master of science in aerospace engineering 2016 approved by joshua l. A16101electrical characterization of dielectric barrier discharge by dr. Intensity control of dielectric barrier discharge filaments. Dielectric barrier discharge indiumtin oxide dc magnetron xray photoelectron spectroscopy aluminumdoped zinc oxide azo is a material that can have high electrical conductivity while being highly transparent at the same time. Dielectric barrier discharge dbd plasma actuator is becoming a popular device in aeronautics application. This physical phenomenon is nowadays well known, and many researchers have contributed to the comprehension and explanation of the microdischarge mechanism. Dielectric barrier discharge 1 m long dielectric barrier discharge. Dielectricbarrier discharges silent discharges are used on a large industrial scale. Dielectric barrier discharge for surface treatment. Eht pulse generators have been used to generate a wide range of dielectric barrier discharges for medical devices, basic research, surface modification and many other applications. Report on the different plasma m odules for pollution. After the thermal plasma reaches a local equilibrium state, the electron temperature.
Effect of gas composition on removal of no by dielectric. They combine the advantages of nonequilibrium plasma. Experimental investigation of the dielectric barrier discharge using. Sterilization of tubular medi cal instruments using wiretype. Dielectricbarrier discharges dbds, also referred to as barrier discharges or silent discharges have for a long time been exclusively related to ozone generation. Modeling of dielectric barrier discharge plasma actuator. Abstract this study was aimed to determine the influence of dielectric barrier discharge dbd plasma with a plasma intensity 20 and 40 kv. The current behaviour of the plasma discharge is analyzed and timeaveraged and timeresolved measurements of the produced electric wind are proposed. Pdf dielectric barrier discharges dbds are plasmas generated in configurations with an insulating dielectric material between the electrodes which. Eiceman d, isik kanik c aimaginative technologies llc, monrovia, ca. Dielectric barrier discharge dbd in air has been the subject of many research studies.
On the use of pulsed dielectric barrier discharges to control the gasphase composition of atmospheric pressure air plasmas. The electrical dynamics of dielectric barrier discharges technische. Performance characterization and quantification of dielectric. They found that several discharge stages could occur during a halfcycle of the driving oscillation. Development of dielectricbarrierdischarge ionization. Report on the different plasma m odules for pollution removal. Electron impact processes in dbds produce radicals and ions which initiate the plasma chemistry. Ozone and nitrogen oxides synthesis, energy 161 consumption.
Dielectric barrier discharges dbds are selfsustaining electrical discharges in electrode configurations containing an insulating material in the discharge path. Electrostatic analysis of dc discharge phenomena in air with. Others mechanical devices such as vortex generator, slats and flaps produce noises and. Role of surface vs gas phase dynamics a interaction between filaments b diffuse discharges v. A numerical investigation of dielectric barrier discharge aimed to simulate the electro hydro dynamic interaction is presented. Optical and discharge physics dielectric barrier discharges dbds are well suited for generation of gasphase radicals at atmospheric pressures. They are separated, as the name implies, by a dielectric material and power is coupled capacitively into the discharge. Dielectricbarrierdischarge ionization is an ambientionization technique. Application of dielectric surface barrier discharge for food. Glow discharge at atmospheric pressure using a dielectric barrier discharge can induce fluid flow and operate as an actuator for flow control 16. A gapless microdielectricbarrierdischarge ion source for.
A typical dielectric barrier discharge actuator is operated in relative humidity rh ranging from 40% up to 98%. Nov 25, 2014 dielectric barrier discharge ionization is an ambientionization technique. Methanol production in ac dielectric barrier discharge aghamir farzin m. Oligomerization of carbon monoxide in plasma of the. In this study, doublelayered solid dielectric barriers and planeplane electrode system are used to examine the dc discharge characteristics of air under atmospheric pressure. Dbds are known under different names like barrier discharge, silent discharge, acdischarge, normal pressure glow discharge, ozonizer discharge and display discharge. Electric wind produced by a surface dielectric barrier. This physical phenomenon is nowadays well known, and many researchers have contributed to the comprehension and explanation of the micro discharge mechanism. Dielectric barrier discharge dbd is a nonthermal plasma. Electron current from an rf microdielectric barrier discharge junchieh wang, napoleon leoni, henryk birecki, omer gila, and mark j. Modeling dielectric barrier discharges in more than one dimension is possible, but the results can be difficult to interpret because of the amount of competing physics in the problem. Electrical characterization of dielectric barrier discharge dr. Direct nonoxidative methane conversion by dielectric barrier discharge a modeling study xiaozhou shen, joseph toth, r.
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