Microwave plasma torch at water surface

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F16%3APU117721" target="_blank" >RIV/00216305:26310/16:PU117721 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.dl.begellhouse.com/journals/5a5b4a3d419387fb,2cf1e1a94009b3e1.html" target="_blank" >http://www.dl.begellhouse.com/journals/5a5b4a3d419387fb,2cf1e1a94009b3e1.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1615/PlasmaMed.2016015862" target="_blank" >10.1615/PlasmaMed.2016015862</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Microwave plasma torch at water surface

Popis výsledku v původním jazyce

Argon plasma torch sustained by 2.45 GHz electromagnetic wave can be in contact with water surface or penetrate inside the water depending on the wave power. The propagation of the electromagnetic wave sustaining the discharge in water is problematic: the water dielectric permittivity strongly depends on the wave frequency and the temperature and varies between 6 and 86. At wave frequency of 2.45 GHz and room temperature (20 ºC) its value is 80 which leads to very fast decay of the electromagnetic wave. We have studied both theoretically and experimentally the plasma properties and the electrodynamics of the wave propagation when the gas discharge is in contact with water. Depending on the wave power and the gas flow it is possible to produce plasma with low (room) temperature. The plasma is non-equilibrium one with electron temperature much higher than the gas/liquid temperature. Because of this, many radicals and chemically active particles can be produced even at low temperature. Depending on the regime of operation this kind of discharges can find various applications for surface treatment, sterilization, surface energy change and others, including temperature sensitive materials and liquids treatment.

Název v anglickém jazyce

Microwave plasma torch at water surface

Popis výsledku anglicky

Argon plasma torch sustained by 2.45 GHz electromagnetic wave can be in contact with water surface or penetrate inside the water depending on the wave power. The propagation of the electromagnetic wave sustaining the discharge in water is problematic: the water dielectric permittivity strongly depends on the wave frequency and the temperature and varies between 6 and 86. At wave frequency of 2.45 GHz and room temperature (20 ºC) its value is 80 which leads to very fast decay of the electromagnetic wave. We have studied both theoretically and experimentally the plasma properties and the electrodynamics of the wave propagation when the gas discharge is in contact with water. Depending on the wave power and the gas flow it is possible to produce plasma with low (room) temperature. The plasma is non-equilibrium one with electron temperature much higher than the gas/liquid temperature. Because of this, many radicals and chemically active particles can be produced even at low temperature. Depending on the regime of operation this kind of discharges can find various applications for surface treatment, sterilization, surface energy change and others, including temperature sensitive materials and liquids treatment.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/LD14014" target="_blank" >LD14014: Plazmové jety založené na elektrických výbojích v kapalinách v konfiguraci pin-hole</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Plasma Medicine

ISSN

1947-5764

e-ISSN

1947-5772

Svazek periodika

6

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

59-65

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-84991044099