Dielectric barrier discharges in coplanar arrangements valentin i gibalov and gerhard j pietsch barrier discharges in coplanar electrode systems valentin i gibalov and gerhard j pietschrecent citations the statistical data on microdischarges of the surface dielectric barrier discharge unit based on aluminum nitride barrier alexander lazukin et al. Dielectric barrier discharges dbds are widely used for various applications, including polymer treatment, lighting, and ozone production. Dielectric barrier discharge dbd is a typical nonequilibrium high pressure ac gas discharge. Dielectric barrier discharge properties and applications. Characteristics of microdischarge depend on electrode configurations. Dielectricbarrier discharges dbds, also referred to as barrier discharges or silent discharges have for a long time been exclusively related to ozone generation. Report on the different plasma m odules for pollution. Their history, discharge physics, and industrial applications ulrich kogelschatz1 receiued april 5, 2002. Page 1 electrical characterization of dielectric barrier discharge dr. An atmosphericpressure dielectric barrier discharge apdbd can be generated by injecting into the reactor gap a working gas such as helium, argon, nitrogen, oxygen, air, etc or a mixture of them, while at least two electrodes are energized by an electric power supply such as dc pulsed or ac. The reactor consists of a quartz glass tube, high voltage and grounded electrodes. Nov 15, 2016 a submerged dielectric barrier discharge plasma reactor underwater dbd has been used to inactivate biofilm produced by three different foodborne pathogens, namely escherichia coli o157.
The dielectric is the key for the proper functioning of the discharge. Detailed investigations into the properties of this nonequilibrium discharge which can be conveniently operated at about atmospheric pressure led to a. Basics and biomedical applications of dielectric barrier. Yassine bellebna, rabah ouiddir, said nemmich, amar tilmatine apelec laboratory, djillali liabes university of sidi belabbes, algeria. Application of dielectric surface barrier discharge for food storage. Dielectric barrier discharge dbd is the electrical discharge between two electrodes separated by an insulating dielectric barrier. Each power consumption value has been adjusted by combining different. This diagnostic method is applicable when crosssectional area of the active plasma volume and current density can be determined.
Optimization of dielectric barrier discharge plasma. Dielectric barrier discharges silent discharges are used on a large industrial scale. Introduction remediation of toxic gases, chemical gas conversion, ozone generation, and plasma catalysis are examples of atmospheric pressure plasma applications which utilize dielectric barrier discharges dbds 1. They combine the advantages of nonequilibrium plasma properties with the ease of atmosphericpressure operation. Despite the fact that the signaltonoise ratio of cyclogrambased measurements is much better than that of a direct measurement of the discharge. Aug 30, 20 dielectric barrier discharge using a ignition coil. Modeling of and driver design for a dielectric barrier discharge lamp amgad amin eldeib doctor of philosophy graduate department of electrical and computer engineering university of toronto 2010 dielectric barrier discharge dbd excimer lamp is a very attractive source for ultraviolet uv radiation. In the reverse half of the cycle, electrons are supplied by surface discharges on the dielectric and move toward the metal electrode. Dielectric barrier discharge in atmospheric air for di. Depending on specific applications, plasma may be varied from diffuse to strongly filamentary mode. Our dbds used a symmetric triangular high voltage waveform to generate plasma in atmospheric pressure air. Effects and mechanism of atmosphericpressure dielectric. Modeling of dielectric barrier discharge plasma actuator.
This socalled dielectric barrier is responsible for a selfpulsing plasma operation and thus, the formation of a nonthermal plasma at normal pressure. Dielectric barrier discharge dbd in air is characterized applying current measurement, numerical simulation and optical emission spectroscopy oes. An overview of corona discharge, arc discharge, dielectric barrier discharge dbd, surface discharge sd, atmospheric pressure glow discharge apgd and atmospheric pressure plasmas jet has been. Carbon dioxide splitting in a dielectric barrier discharge. Concearning the stability and enhancement the role of dielectric barrier discharge dbd in medical applications, i would like to ask about the more effected type of used dielectric materials in. Glow discharge at atmospheric pressure using a dielectric barrier discharge can induce fluid flow and operate as an actuator for flow control 16.
The dielectric barrier discharge has been the subject of extensive research by many researchers recently because of its simplicity in operation and yet with great. There are a grand total of two sentences there concerning the apparent article topic, which is. By this method, which has application area at industry, non. Introduction traditional approaches for active flow separation control using dielectric barrier discharge dbd. Dielectric barrier discharges make use of a high frequency field applied through a protective and currentlimiting dielectric barrier to develop a plasma discharge in the gap between dielectrics. 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. Issue 10 decemer 015 dielectric barrier discharge based plasma actuators for flow control al10052 where n i is the density of the ith species and v i is its velocity. The total oxidation of toluene in air was investigated using a dielectric barrier discharge dbd, both in the absence and in the presence of agal2o3 catalysts, placed downstream of the plasma reactor. The current behaviour of the plasma discharge is analyzed and timeaveraged and timeresolved measurements of the produced electric wind are proposed. Lopez saint peters college department of applied science and technology physics division jersey city, new jersey usa. Comparison of dielectric barrier discharge, atmospheric. It is known that the dbd can be occurred between two electrodes, at least one of which should be covered with dielectric, when an ac high voltage is applied on the electrodes. The discharge vessel comprises an outer tubular portion having an internal surface, and an inner tubular portion having an outward surface.
Both energies etotalt and et merge at the end of the discharge. Measurements and simulations of surface dielectric barrier. Others mechanical devices such as vortex generator, slats and flaps produce noises and. Dynamics of dielectric barrier discharges in different. Dielectric barrier discharge, ozone generation, and their applications complex plasmas summer institute 2008 jose l. Capacitance and power consumption quantification of. In this simple model the problem is reduced to 1d by assuming the dielectric gap is much smaller than the diameter of the plates. A prominent feature is the simple scalability from small laboratory reactors to large industrial installations with megawatt input powers. Modeling of dielectric barrier discharge and resulting fluid dynamics balaji jayaraman 1, siddharth thakur 2 and wei shyy 3 dept. Asymmetric surface dielectric barrier discharges dbds have shown promise for use as aerodynamic actuators which can prevent. Crosstalk in multiple dielectric barrier discharge actuators.
Simulation tool for dielectric barrier discharge plasma actuators at atmospheric and subatmospheric pressures sbir phase i final report alexandre likhanskii techx corporation boulder, colorado 80303 1. Introduction dielectric barrier discharge dbd is a popular discharge system for generating lowtemperature plasmas. They combine the advantages of nonequilibrium plasma. A lowpower magneticfieldassisted plasma jet generated by.
A new ion source based on dielectric barrier discharge was developed as an alternative ionization source for ambient mass spectrometry. On right, the schematic diagram shows a typical construction of a dbd wherein one of the. Two plasma discharge modes are observed, regardless of the relative. Dielectric barrier discharges dbds are selfsustaining electrical discharges in electrode configurations containing an insulating material in the discharge path. Electrical characterization of dielectric barrier discharge. This socalled dielectric barrier is responsible for a selfpulsing plasma operation and thus, the formation of. In particular, asymmetric dielectric barrier discharge dbd plasma actuators are known to be e ective ehd device in aerodynamic control, 4, 5.
Dielectricbarrier discharge dbd is the electrical discharge between two electrodes separated by an insulating dielectric barrier. Jun 15, 2006 the presented floatingelectrode dielectric barrier discharge plasma is proven electrically safe to human subjects and our results show no gross visual or histological microscopic damage to skin samples in minutes, complete tissue sterilization from skin flora in seconds, and blood clot formation in seconds of electric plasma treatment. Successively accelerated ionic wind with integrated dielectricbarrier. Lopez, phd setoseto a u e s tyn hall university department of physics south orange, new jersey usa. Numerical modeling of dielectric barrier discharge based. Recently, biocidal properties of atmosphericpressure dbds have made them potentially a favorable system for the disinfection of living surfaces. Basics and biomedical applications of dielectric barrier discharge dbd, biomedical engineering, trends in materials science, anthony n. However, once dissolved in the liquid phase, these species will combine with. Electric wind produced by a surface dielectric barrier. As a high voltage electrode, a stainless steel wire of 1. Optimization of dielectric barrier discharge plasma actuators for active aerodynamic flow control flinto. The discharge vessel further comprises a phosphor layer within the discharge volume. Dielectric barrier discharges dbds, also referred to as barrier discharges or silent discharges have for a long time been exclusively related to ozone generation.
It was used to make a flat spiral with three double turns which was placed on the bottom of a. And the second component to the gas discharge itself. Typical operational conditions of barrier discharges electric field strength e of first breakdown. A dielectric barrier discharge dbd is produced when at least one of the electrodes of a gas discharge powered by an alternating or pulsed current source is covered by dielectric. Dielectric barrier discharge in atmospheric air for di erent. Modeling of and driver design for a dielectric barrier. Nikita bibinov, priyadarshini rajasekaran, philipp mertmann dirk wandke, wolfgang viol and peter awakowicz january 8th 2011.
Dielectric barrier discharge dbd plasmas and their. Dielectric barrier discharge dbd plasmas and their applications. The dbd system consisted of a stainless steel cylinder with. Dielectric barrier discharge dbd is a nonthermal plasma. Dielectric barrier discharge plasma actuator for flow control. Intracellular electric fields produced by dielectric. Microbubbleenhanced dielectric barrier discharge pretreatment of. Dielectric barrier discharges have been studied extensively, but not used successfully for analytical applications. A magnetic field is introduced to the dielectric barrier discharge enhanced directcurrent glow discharge for efficient plasma generation, with the discharge power of 2. Pdf characteristics of dielectric barrier discharge. Combined cluster analysis and principal component analysis.
It has been used in many applications such as displays, mobile devices and solar cells. Electrical characteristics and modeling of a filamentary. Figure 4 shows a dielectric barrier discharge dbd reactor used for nh 3 generation. The effects of two fluorination methods on the microstructures, electrical parameters, and insulation properties of the materials were studied. Characterization of dielectric barrier discharge in air. The article drive dielectric barrier discharge besides its title making no sense consists of four sentences in two paragraphs plus a bullet list, and all but the last paragraph two sentences are giving information that is in, or should be in, this article in the first place. The dielectric barrier discharge ionization source, termed as dbdi herein, was composed of a copper sheet electrode, a discharge electrode, and a piece of glass slide in between as dielectric barrier as well as sample plate. Discharge voltage peak to peak versus frequency for 3. Daisuke nonaka from shizuoka university, hamamatsu, for the fruitful discussions. The air discharge gap between the dielectric layers was varied from 1. 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. In the case of dbd, a dielectric barrier is used to stop current and prevent arc formation. A dielectric barrier discharge dbd lamp is disclosed.
Carbon dioxide splitting in a dielectric barrier discharge plasma. Pdf dielectricbarrier discharges silent discharges are used on a large industrial scale. 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. Timeresolved evolution of microdischarges, surface. Report on the different plasma m odules for pollution removal. Dielectric barrier discharge dbd is referred to as barrier discharges or silent inaudible discharges. For a single dielectric barrier discharge, during onehalf of the ac cycle, electrons leave the metal electrode and move towards the dielectric where they accumulate locally. Atmosphericpressure dielectric barrier discharge generation. Characteristics of microdischarge depend on electrode. Nonlinear phenomena in dielectric barrier discharges. Introduction dielectric barrier discharges dbds are selfsustaining electrical discharges in electrode con. A submerged dielectric barrier discharge plasma inactivation. The dbd discharge has been generated in planar geometry reactor powered by ac voltage provided by conventional high voltage transformer.
Dielectric barrier discharge dbd dielectric barrier discharge dbd is similar to pulsed corona, in that its development was a result of trying to find a solution for avoiding arc formation. An 8kv dc voltage combining 25khz negative 8kv pulses was applied in the discharge simulation. Dielectric barrier discharge plasma, 10kv, 10khz solid state unipolar pulses developed by growcontrols, email. Jul 19, 2016 first test of dielectric barrier discharge. Dielectric barrier discharge in atmospheric air for di erent barrier materials 1299 c b. Microbubbleenhanced dielectric barrier discharge pretreatment of microcrystalline cellulose. Dielectric barrier discharge dbd plasma actuator is becoming a popular device in aeronautics application. Single dielectric barrier discharge plasma enhanced. Simulation tool for dielectric barrier discharge plasma. Dielectric barrier discharges dbds are plasmas generated in configurations with an insulating. To solve this problem, filler fluorination with dielectric barrier discharge dbd plasma and chemical methods were designed to modify the tio 2 filler. 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. Due to the manifold possibilities of configurations and discharge parameters, there are often used different terms for the same type of discharge. The dbd lamp comprises a discharge vessel, which encloses a discharge volume filled with discharge gas.
A16101electrical characterization of dielectric barrier discharge by dr. Comparison of dielectric barrier discharge, atmospheric pressure radiofrequencydriven glow discharge and direct analysis in real time sources for ambient mass spectrometry of acetaminophen. Dielectricbarrier discharges dbds are formed by applying an alternating high voltage across two electrodes where at least one of the electrodes is covered by a dielectric 1. A typical dielectric barrier discharge actuator is operated in relative humidity rh ranging from 40% up to 98%. A pretreatment reactor that forms a dielectric barrier discharge plasma at the gasliquid interface of the microbubbles has been developed and tested to pretreat. 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. Selforganization and migration of dielectric barrier. Development of a dielectric barrier discharge ion source.
Dielectricbarrier discharges dbds comprise a specific class of highvoltage, ac, gaseous discharges that typically operate in the nearatmospheric pressure range. A pretreatment reactor that forms a dielectric barrier discharge plasma at the. Characteristics of dielectric barrier discharge reactor. The dielectric barrier consisted of two glass slabs, which cover both reactor electrodes. Application of dielectric surface barrier discharge for. Dielectric barrier discharge, ozone generation, and their. The most efficient method to get cold plasma at atmospheric pressure is dielectric barrier discharge dbd. Selforganization of single filaments and diffusive. Applications of dielectric barrier discharge microplasma intechopen. Radio frequency rf dielectric barrier discharge dbd actuators have been studied for their potential use to control. Dielectricbarrier discharges silent discharges are used on a large industrial scale. Apr 27, 2007 the most efficient method to get cold plasma at atmospheric pressure is dielectric barrier dischargedbd. For a typical dbd system, at least one of the electrodes is covered by a. Pdf dielectric barrier discharges dbds are plasmas generated in configurations with an insulating.
Development of a dielectric barrier discharge ion source for. Modeling of dielectric barrier discharge and resulting fluid. Selforganization of single filaments and diffusive plasmas. A gapless microdielectricbarrierdischarge ion source for.
Power consumption, discharge capacitance and light emission as. Blood coagulation and living tissue sterilization by floating. This model simulates electrical breakdown in an atmospheric pressure gas. Dielectric pellets were packed inside the glass tube.
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