The Influence of Nitrogen in Ar+N2 Mixture on Parameters of HighTemperature Device with Electric Arc
Jakubova , Ivana
Senk , Josef
Laznickova , Ilona
PrávaCreative Commons Attribution 4.0 International License
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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.
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