Publication detail

Radiative Heat Transfer in Models of DC Arc Plasma

BAEVA, M. KLOC, P. CRESSAULT, Y.

Original Title

Radiative Heat Transfer in Models of DC Arc Plasma

Type

journal article in Scopus

Language

English

Original Abstract

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 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.

Keywords

radiative heat transfer; arc plasma; equilibrium; multi-band approximation; P1 method; net emission coefficient

Authors

BAEVA, M.; KLOC, P.; CRESSAULT, Y.

Released

8. 8. 2023

Publisher

Czech Technical University in Prague

ISBN

2336-2626

Periodical

Plasma Physics and Technology

Year of study

10

Number

1

State

Czech Republic

Pages from

15

Pages to

19

Pages count

4

URL

https://ojs.cvut.cz/ojs/index.php/PPT/article/view/9046

Full text in the Digital Library

http://hdl.handle.net/11012/245020

BibTex

@article{BUT185309,
  author="Margarita {Baeva} and Petr {Kloc} and Yann {Cressault}",
  title="Radiative Heat Transfer in Models of DC Arc Plasma",
  journal="Plasma Physics and Technology",
  year="2023",
  volume="10",
  number="1",
  pages="15--19",
  doi="10.14311/ppt.2023.1.15",
  issn="2336-2626",
  url="https://ojs.cvut.cz/ojs/index.php/PPT/article/view/9046"
}