Modeling of argon-steam thermal plasma flow for abatement of fluorinated compounds

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F22%3A00560198" target="_blank" >RIV/61389021:_____/22:00560198 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26220/22:PU145294

Result on the web

<a href="https://iopscience.iop.org/article/10.1088/1361-6463/ac7aee" target="_blank" >https://iopscience.iop.org/article/10.1088/1361-6463/ac7aee</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6463/ac7aee" target="_blank" >10.1088/1361-6463/ac7aee</a>

Result language

angličtina

Original language name

Modeling of argon-steam thermal plasma flow for abatement of fluorinated compounds

Original language description

This study presents a numerical model of the hybrid-stabilized argon-steam thermal DC plasma torch of a new design for generating an argon-steam plasma suitable for efficient abatement of persistent perfluorinated compounds. The model includes the discharge region and the plasma jet flowing to the surrounding steam atmosphere contained in a plasma-chemical chamber. Compared to previous studies, the torch had a smaller nozzle diameter (5.3 mm) and a reduced input power (20-40 kW) and arc current (120-220 A). The outlet region for the plasma jet extends to 20 cm downstream of the exit nozzle. Fluid dynamic and thermal characteristics together with diffusion of argon, hydrogen and oxygen species, and distribution of plasma species in the discharge and the plasma jet are obtained for currents from 120 to 220 A. The results of the calculations show that the plasma jet exhibits high spatiotemporal fluctuations in the shear layer between the plasma jet and colder steam atmosphere. The most abundant species in the plasma jet are hydrogen and oxygen atoms near the jet center, and molecules of H2, O2 and OH in colder surrounding regions. Satisfactory agreement is obtained with measurements of the radial temperature and electron number density profiles near the jet center close to the nozzle exit.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

<a href="/en/project/GC17-10246J" target="_blank" >GC17-10246J: Decomposition of perfluorinated compounds and fluorinated ozone depleting substances in thermal plasma jets</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

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

Name of the periodical

Journal of Physics D-Applied Physics

ISSN

0022-3727

e-ISSN

1361-6463

Volume of the periodical

55

Issue of the periodical within the volume

37

Country of publishing house

GB - UNITED KINGDOM

Number of pages

20

Pages from-to

375201

UT code for WoS article

000820465300001

EID of the result in the Scopus database

2-s2.0-85134247065