Detail publikace

Modelling of Intensively Blasted Electric Arc

Senk, J., Jakubova, I., Laznickova, I.

Originální název

Modelling of Intensively Blasted Electric Arc

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

The paper deals with a simplified model of an intensively blasted electric arc burning in the anode channel of an arc heater. The model is based on the energy conservation law, continuity equation and Ohm’s law. For computation, transport and thermodynamic properties of working medium and real experimental results describing the external manifestation of the arc are necessary. Many experimental data have been collected during numerous experiments made out with a modular arc heater operated under various experimental conditions, each experiment being characterized by the arc current, voltage, the sort and flow rate of working gas, and the flow rates and temperatures of cooling water in individual segments of the device. In the presented model a rectangular temperature profile of the arc is used. A dependency of the arc column radius rA on the distance from the cathode is prescribed and parameters of the function rA(z) are estimated using the total power balance at the output cross-section of the anode channel. Special attention is paid to the region near the beginning. The dependencies of the arc temperature and electric field intensity on the distance from the cathode are calculated and iterations are stopped if the sums of computed increments agree with the measured values. Computed dependencies are given in diagrams and discussed.

Klíčová slova

intensively blasted electric arc; arc heater; argon; modelling

Autoři

Senk, J., Jakubova, I., Laznickova, I.

Rok RIV

2015

Vydáno

1. 9. 2015

Nakladatel

Czech Technical University in Prague

Místo

Prague

ISSN

2336-2626

Periodikum

Plasma Physics and Technology

Ročník

2

Číslo

1

Stát

Česká republika

Strany od

71

Strany do

74

Strany počet

4

URL

http://fyzika.feld.cvut.cz/misc/ppt/articles/2015/senk.pdf

BibTex

@inproceedings{BUT118039,
  author="Ivana {Jakubová} and Ilona {Lázničková} and Josef {Šenk}",
  title="Modelling of Intensively Blasted Electric Arc",
  booktitle="Plasma Physics and Technology",
  year="2015",
  journal="Plasma Physics and Technology",
  volume="2",
  number="1",
  pages="71--74",
  publisher="Czech Technical University in Prague",
  address="Prague",
  issn="2336-2626",
  url="http://fyzika.feld.cvut.cz/misc/ppt/articles/2015/senk.pdf"
}