Efficiency of Ozone Production in Coplanar Dielectric Barrier Discharge

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F19%3A00518326" target="_blank" >RIV/61389021:_____/19:00518326 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/19:00107728

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs11090-019-09993-6" target="_blank" >https://link.springer.com/article/10.1007%2Fs11090-019-09993-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11090-019-09993-6" target="_blank" >10.1007/s11090-019-09993-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Efficiency of Ozone Production in Coplanar Dielectric Barrier Discharge

Popis výsledku v původním jazyce

Efficient generation of ozone by cold atmospheric plasmas is interesting for sterilisation and decontamination of thermally-sensitive surfaces. This paper presents a study of robust coplanar dielectric barrier discharge (DBD) for generating atmospheric pressure plasma in synthetic air and in oxygen. The atmospheric plasma generated by coplanar DBD in synthetic air showed considerably high ozone production of 2.41g/h (2.25slm, 45W), while the production yield and energy cost were 54g/kWh and 40.9eV/molecule. The use of oxygen instead of synthetic air, at much lower discharge power (2.25slm, 17W), maintained the ozone production of 2.35g/h, whereas the production yield significantly increased to 138g/kWh with a corresponding energy cost of 12.9eV/molecule. The temperature of coplanar DBD ceramics in synthetic air (45W) and oxygen (17W) plasma generation (continuous alternating-current operation) showed temperatures below 70 degrees C and 30 degrees C, respectively. The rotational temperatures obtained from optical emission spectroscopy indicated similar gas temperatures in the thin plasma layer close to the surface of the DBD ceramics. The low temperature of the plasma-ceramics interface evidences the applicability of coplanar DBD for the contact treatment of thermally sensitive surfaces where a high concentration of ozone is required.

Název v anglickém jazyce

Efficiency of Ozone Production in Coplanar Dielectric Barrier Discharge

Popis výsledku anglicky

Efficient generation of ozone by cold atmospheric plasmas is interesting for sterilisation and decontamination of thermally-sensitive surfaces. This paper presents a study of robust coplanar dielectric barrier discharge (DBD) for generating atmospheric pressure plasma in synthetic air and in oxygen. The atmospheric plasma generated by coplanar DBD in synthetic air showed considerably high ozone production of 2.41g/h (2.25slm, 45W), while the production yield and energy cost were 54g/kWh and 40.9eV/molecule. The use of oxygen instead of synthetic air, at much lower discharge power (2.25slm, 17W), maintained the ozone production of 2.35g/h, whereas the production yield significantly increased to 138g/kWh with a corresponding energy cost of 12.9eV/molecule. The temperature of coplanar DBD ceramics in synthetic air (45W) and oxygen (17W) plasma generation (continuous alternating-current operation) showed temperatures below 70 degrees C and 30 degrees C, respectively. The rotational temperatures obtained from optical emission spectroscopy indicated similar gas temperatures in the thin plasma layer close to the surface of the DBD ceramics. The low temperature of the plasma-ceramics interface evidences the applicability of coplanar DBD for the contact treatment of thermally sensitive surfaces where a high concentration of ozone is required.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

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

39

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

1227-1242

Kód UT WoS článku

000477907500006

EID výsledku v databázi Scopus

2-s2.0-85064916199