Influence of Duty Cycle on Ozone Generation and Discharge Using Volume Dielectric Barrier Discharge

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F18%3A00489523" target="_blank" >RIV/61389021:_____/18:00489523 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11090-017-9866-y" target="_blank" >http://dx.doi.org/10.1007/s11090-017-9866-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11090-017-9866-y" target="_blank" >10.1007/s11090-017-9866-y</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Duty Cycle on Ozone Generation and Discharge Using Volume Dielectric Barrier Discharge

Popis výsledku v původním jazyce

The influence of duty cycle on ozone generation and discharge characteristics was investigated experimentally using volume dielectric barrier discharge in both synthetic air and pure oxygen at atmospheric pressure. The discharge was driven by an amplitude-modulated AC high voltage-power supply producing T-ON (a single AC cycle) and T-OFF periods with a widely variable duty cycle. The experimental results show that the energy delivered to the discharge during each AC cycle remains roughly constant and is independent of feed gas, duty cycle and T-OFF. Both average discharge power and ozone concentration show an initial linear increase with duty cycle, and deviate gradually from linearity owing to an increase in gas temperature at higher duty cycles. Nevertheless, ozone yield remains nearly constant (45.7 +/- 3.5 g/kWh in synthetic air and 94.7 +/- 3.1 g/kWh in pure oxygen) over a wide range of applied duty cycles (0.02-1). This property can be conveniently employed to develop a unique ozone generator with a widely adjustable ozone concentration and simultaneously a constant ozone yield. Additionally, the discharges in synthetic air and pure oxygen have similar electrical characteristics, however, there are observable differences in apparent luminosity, which is weak and white-toned for synthetic air discharge, and bright and blue-toned for pure oxygen discharge.

Název v anglickém jazyce

Influence of Duty Cycle on Ozone Generation and Discharge Using Volume Dielectric Barrier Discharge

Popis výsledku anglicky

The influence of duty cycle on ozone generation and discharge characteristics was investigated experimentally using volume dielectric barrier discharge in both synthetic air and pure oxygen at atmospheric pressure. The discharge was driven by an amplitude-modulated AC high voltage-power supply producing T-ON (a single AC cycle) and T-OFF periods with a widely variable duty cycle. The experimental results show that the energy delivered to the discharge during each AC cycle remains roughly constant and is independent of feed gas, duty cycle and T-OFF. Both average discharge power and ozone concentration show an initial linear increase with duty cycle, and deviate gradually from linearity owing to an increase in gas temperature at higher duty cycles. Nevertheless, ozone yield remains nearly constant (45.7 +/- 3.5 g/kWh in synthetic air and 94.7 +/- 3.1 g/kWh in pure oxygen) over a wide range of applied duty cycles (0.02-1). This property can be conveniently employed to develop a unique ozone generator with a widely adjustable ozone concentration and simultaneously a constant ozone yield. Additionally, the discharges in synthetic air and pure oxygen have similar electrical characteristics, however, there are observable differences in apparent luminosity, which is weak and white-toned for synthetic air discharge, and bright and blue-toned for pure oxygen discharge.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/GA15-04023S" target="_blank" >GA15-04023S: Pokročilý výzkum kinetických procesů ve streamerových výbojích</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Plasma Chemistry and Plasma Processing

ISSN

0272-4324

e-ISSN

—

Svazek periodika

38

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

355-364

Kód UT WoS článku

000425300900005

EID výsledku v databázi Scopus

2-s2.0-85037634737