The Influence of Nitrogen in Ar+N2 Mixture on Parameters of High-Temperature Device with Electric Arc

Authors

  • Ivana Jakubova
  • Josef Senk
  • Ilona Laznickova

DOI:

https://doi.org/10.14311/1753

Keywords:

arc heater, gas mixture, argon, nitrogen.

Abstract

The paper presents the results of numerous experiments carried out on a high temperature device consisting of an arc heater with intensively blasted electric arc and reaction chambers connected to its output. The influence of nitrogen mass concentration (up to 11 %) in working gas Ar+N2 on voltage–current characteristics, power losses of individual parts and efficiency is studied for two variants of electrical configuration of the device. A short description of the computation of necessary thermodynamic and transport properties of Ar+N2 mixture is included. The computed properties are then used for evaluation of mean temperature and velocity at certain cross-sections of the device. Conclusions can be useful for the design of high temperature devices operating with argon/nitrogenmixture.

Author Biographies

Ivana Jakubova

Josef Senk

Ilona Laznickova

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Published

2013-01-02

Issue

Section

Articles