Radiative Heat Transfer in Models of DC Arc Plasma

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F23%3APU149511" target="_blank" >RIV/00216305:26220/23:PU149511 - isvavai.cz</a>

Result on the web

<a href="https://ojs.cvut.cz/ojs/index.php/PPT/article/view/9046" target="_blank" >https://ojs.cvut.cz/ojs/index.php/PPT/article/view/9046</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/ppt.2023.1.15" target="_blank" >10.14311/ppt.2023.1.15</a>

Result language

angličtina

Original language name

Radiative Heat Transfer in Models of DC Arc Plasma

Original language description

The radiative heat transfer in arc plasma models of a free-burning arc and a plasma torch in atmospheric pressure argon is taken into account in a self-consistent way. This is realized by the P1 method for solving the equation of radiative transfer and the multi-band approximation that considers the division of the emitted spectrum into a number of spectral bands. Net emission coefficients are evaluated by solving the equation of radiative transfer in three dimensions in an isothermal cylindrical plasma. The arc plasma parameters of the free-burning arc and the plasma torch obtained accounting for radiative transport have been compared with those from the temperature-dependent net emission coefficient for a radius of 1&thinsp;mm. The results show that in general, the models applying the net emission coefficient provide results in the arc core close to that using the P1 method. The discrepancy is stronger in the arc periphery and near walls, where the P1 method predicts absorption of radiation.

Czech name

—

Czech description

—

Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

—

OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Plasma Physics and Technology

ISSN

2336-2626

e-ISSN

—

Volume of the periodical

10

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

4

Pages from-to

15-19

UT code for WoS article

—

EID of the result in the Scopus database

2-s2.0-85169705075