Gas mixing enhanced by power modulations in atmospheric
pressure microwave plasma jet

J 2016

Gas mixing enhanced by power modulations in atmospheric pressure microwave plasma jet

VORÁČ, Jan; Lucia POTOČŇÁKOVÁ; Petr SYNEK; Jaroslav HNILICA; Vít KUDRLE et. al.

Základní údaje

Originální název

Gas mixing enhanced by power modulations in atmospheric pressure microwave plasma jet

Autoři

VORÁČ, Jan (203 Česká republika, garant, domácí); Lucia POTOČŇÁKOVÁ (703 Slovensko, domácí); Petr SYNEK (203 Česká republika, domácí); Jaroslav HNILICA (203 Česká republika, domácí) a Vít KUDRLE (203 Česká republika, domácí)

Vydání

Plasma Sources Science and Technology, IOP Pub. 2016, 0963-0252

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10305 Fluids and plasma physics

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.302

Kód RIV

RIV/00216224:14310/16:00087599

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1088/0963-0252/25/2/025018

UT WoS

000372337900020

EID Scopus

2-s2.0-84962273589

Klíčová slova anglicky

microwave plasma; atmospheric pressure; plasma jet; gas mixing; vortex

Štítky

AKR, podil, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 13. 3. 2018 10:29, Mgr. Petr Synek, Ph.D.

Anotace

V originále

Microwave plasma jet operating in atmospheric pressure argon was power modulated by audio frequency sine envelope in the 10^2 W power range. Its effluent was imaged using interference filters and ICCD camera for several different phases of the modulating signal. The combination of this fast imaging with spatially resolved optical emission spectroscopy provides useful insights into the plasmachemical processes involved. Phase-resolved schlieren photography was performed to visualize the gas dynamics. The results show that for higher modulation frequencies the plasma chemistry is strongly influenced by formation of transient flow perturbation resembling a vortex during each period. The perturbation formation and speed are strongly influenced by the frequency and power variations while they depend only weakly on the working gas flow rate. From application point of view, the perturbation presence significantly broadened lateral distribution of active species, effectively increasing cross-sectional area suitable for applications.

Návaznosti

ED1.1.00/02.0068, projekt VaV

Název: CEITEC - central european institute of technology

ED2.1.00/03.0086, projekt VaV

Název: Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy

EE2.3.30.0009, projekt VaV

Název: Zaměstnáním čerstvých absolventů doktorského studia k vědecké excelenci

LO1411, projekt VaV

Název: Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy (Akronym: CEPLANT plus)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy

TE02000011, projekt VaV

Název: Centrum výzkumu povrchových úprav (Akronym: povrchovky)

Investor: Technologická agentura ČR, Research center of surface treatment

Přiložené soubory

psst_25_2_025018-select.pdf Verze souboru

ZVV_2016_1337860_Gas_mixing.pdf

Požádat o autorskou verzi souboru

Citovat

VORÁČ, Jan; Lucia POTOČŇÁKOVÁ; Petr SYNEK; Jaroslav HNILICA a Vít KUDRLE. Gas mixing enhanced by power modulations in atmospheric pressure microwave plasma jet. Plasma Sources Science and Technology. IOP Pub., 2016, roč. 25, č. 2, s. "nestrankovano", 15 s. ISSN 0963-0252. Dostupné z: https://dx.doi.org/10.1088/0963-0252/25/2/025018.

@article{1337860,
   author = {Voráč, Jan and Potočňáková, Lucia and Synek, Petr and Hnilica, Jaroslav and Kudrle, Vít},
   article_number = {2},
   doi = {http://dx.doi.org/10.1088/0963-0252/25/2/025018},
   keywords = {microwave plasma; atmospheric pressure; plasma jet; gas mixing; vortex},
   language = {eng},
   issn = {0963-0252},
   journal = {Plasma Sources Science and Technology},
   title = {Gas mixing enhanced by power modulations in atmospheric pressure microwave plasma jet},
   url = {http://iopscience.iop.org/article/10.1088/0963-0252/25/2/025018},
   volume = {25},
   year = {2016}
}

TY  - JOUR
ID  - 1337860
AU  - Voráč, Jan - Potočňáková, Lucia - Synek, Petr - Hnilica, Jaroslav - Kudrle, Vít
PY  - 2016
TI  - Gas mixing enhanced by power modulations in atmospheric pressure microwave plasma jet
JF  - Plasma Sources Science and Technology
VL  - 25
IS  - 2
SP  - "nestrankovano"
EP  - "nestrankovano"
PB  - IOP Pub.
SN  - 09630252
KW  - microwave plasma
KW  - atmospheric pressure
KW  - plasma jet
KW  - gas mixing
KW  - vortex
UR  - http://iopscience.iop.org/article/10.1088/0963-0252/25/2/025018
L2  - http://iopscience.iop.org/article/10.1088/0963-0252/25/2/025018
N2  - Microwave plasma jet operating in atmospheric pressure argon was power modulated by audio frequency sine envelope in the 10^2 W power range. Its effluent was imaged using interference filters and ICCD camera for several different phases of the modulating signal. The combination of this fast imaging with spatially resolved optical emission spectroscopy provides useful insights into the plasmachemical processes involved. Phase-resolved schlieren photography was performed to visualize the gas dynamics. The results show that for higher modulation frequencies the plasma chemistry is strongly influenced by formation of transient flow perturbation resembling a vortex during each period. The perturbation formation and speed are strongly influenced by the frequency and power variations while they depend only weakly on the working gas flow rate. From application point of view, the perturbation presence significantly broadened lateral distribution of active species, effectively increasing cross-sectional area suitable for applications.
ER  -

VORÁČ, Jan; Lucia POTOČŇÁKOVÁ; Petr SYNEK; Jaroslav HNILICA a Vít KUDRLE. Gas mixing enhanced by power modulations in atmospheric pressure microwave plasma jet. \textit{Plasma Sources Science and Technology}. IOP Pub., 2016, roč.~25, č.~2, s.~''nestrankovano'', 15 s. ISSN~0963-0252. Dostupné z: https://dx.doi.org/10.1088/0963-0252/25/2/025018.

Přehled o publikaci