Ozone Generation by Pulsed Streamer Discharge in Air

Buntat, Zolkafle; Smith, I.R.; Razali, Noorhelyna

doi:10.5539/apr.v1n2p2

Cited by 30 publications

(18 citation statements)

References 11 publications

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“…In Figure 9 the characteristics of ozone concentration versus power consumption is shown. The microplasma actuator has an ozone yield of about 28 g/kWh, which is lower than what other researchers reported [50,51]. Besides the fact that ozone causes damages to tissues, a higher concentration of ozone can cause the degradation of electrodes [52].…”

Section: Characteristics Of Microplasma Actuatormentioning

confidence: 67%

Dielectric Barrier Discharge Microplasma Actuator for Flow Control

Shimizu¹,

Blajan²

2018

Actuators

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Dielectric barrier discharge (DBD) plasma actuators are a technology which could replace conventional actuators due to their simple construction, lack of moving parts, and fast response. This type of actuator modifies the airflow due to electrohydrodynamic (EHD) force. The EHD phenomenon occurs due to the momentum transfer from charged species accelerated by an electric field to neutral molecules by collision. This chapter presents a study carried out to investigate experimentally and by numerical simulations a microscale plasma actuator. A microplasma requires a low discharge voltage to generate about 1 kV at atmospheric pressure. A multi-electrode microplasma actuator was used which allowed the electrodes to be energized at different potentials or waveforms, thus changing the direction of the flow. The modification of the flow at various time intervals was tracked by a high-speed camera. The numerical simulation was carried out using the Suzen-Huang model and the Navier-Stokes equations.

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Section: Characteristics Of Microplasma Actuatormentioning

confidence: 67%

Dielectric Barrier Discharge Microplasma Actuator for Flow Control

Shimizu¹,

Blajan²

2018

Actuators

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“…The production yields for ozone in this study using the surface DBDs are comparable with other types of discharges driven by nanosecond pulsed voltages. For example, $70 g/kWh in coupled sliding discharges [18], 70-40 g/kWh in shielded sliding discharges [32], 10-110 g/ kWh in pulsed corona discharges [38,39], and 60-160 g/kWh in the case of surface-DBD [40]. Commercial ozone generators produce P6.5 g/N m 3 ozone from air with an energy yield 670 g/ kWh [41], which is comparable with the surface DBDs reported in this study.…”

Section: Discussionmentioning

confidence: 99%

Coupled surface dielectric barrier discharge reactor-ozone synthesis and nitric oxide conversion from air

Malik

Schoenbach

Heller

2014

Chemical Engineering Journal

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“…One method to achieve high ozone concentration, while being able to increase the flow rate, is by increasing the chamber length [26], [27]. By doing so, the gas residence time (the time in which the oxygen remains inside the chamber) increases; it leads to more dissociation of oxygen molecules into atom and, hence, increase in concentration.…”

Section: Introductionmentioning

confidence: 98%

Analysis, Design, and Implementation of Multiple Parallel Ozone Chambers for High Flow Rate

Amjad

Salam

2014

IEEE Trans. Ind. Electron.

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It is well known that ozone concentration depends on air/oxygen input flow rate and power consumed by the ozone chamber. For every chamber, there exists a unique optimum flow rate that results in maximum ozone concentration. If the flow rate is increased (beyond) or decreased (below) from this optimum value, the ozone concentration drops. This paper proposes a technique whereby the concentration can be maintained even if the flow rate increases. The idea is to connect n number of ozone chambers in parallel, with each chamber designed to operate at its optimum point. Aside from delivering high ozone concentration at high flow rate, the proposed system requires only one power supply to drive all these (multiple) chambers simultaneously. In addition, due to its modularity, the system is very flexible, i.e., the number of chambers can be added or removed as demanded by the (output) ozone requirements. This paper outlines the chamber design using mica as dielectric and the determination of its parameters. To verify the concept, three chambers are connected in parallel and driven by a single transformer-less LCL resonant power supply. Moreover, a closed-loop feedback controller is implemented to ensure that the voltage gain remains at the designated value even if the number of chambers is changed or there is a variation in the components. It is shown that the flow rate can be increased linearly with the number of chambers while maintaining a constant ozone concentration.Index Terms-Dielectric barrier discharge (DBD), high-voltage power supply, ozone chamber, ozone concentration, resonant inverter.

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Ozone Generation by Pulsed Streamer Discharge in Air

Cited by 30 publications

References 11 publications

Dielectric Barrier Discharge Microplasma Actuator for Flow Control

Dielectric Barrier Discharge Microplasma Actuator for Flow Control

Coupled surface dielectric barrier discharge reactor-ozone synthesis and nitric oxide conversion from air

Analysis, Design, and Implementation of Multiple Parallel Ozone Chambers for High Flow Rate

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