National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Effect of Gas Flow on Plasma Jet Generated by Hybrid H2O-Ar Torch
Kavka, Tetyana ; Kopecký, Vladimír ; Hrabovský, Milan ; Sember, Viktor ; Konrád, Miloš
This paper present results of experimental investigation of effect of argon plasma gas flow rate on characteristics of plasma jet in a H2O-Ar DC arc plasma torch.Two different diagnostics technics optical spectroscopy and enthalpy probe have been applied to study plasma jet under atmospheric pressure.Changes inplasma temperature, velocity and composition for different flow rates of argo.
Measurements on Hot Gas Mixture Free Jet
Gregor, Jan ; Jakubová, I. ; Mendl, Tomáš ; Šenk, J. ; Sember, Viktor
The measurements of temperature, velocity and composition of the free jet generated by a hybrid water-argon torch "cold" part of the jet (T<2500K) are presented.Parameters of the jet at the torch output are calculated by the continuity and energy equations using the spectroscopicaly measured temperature distribution.Temperature and velocity fields are measured respecively by thermo.
Reabsorption of Radiation in Water-Vortex Stabilized Electric arc and Influence on arc Performance
Jeništa, Jiří
The present paper is concerned with numerical modelling of an electric arc stabilized by water vortex.Two-dimensional aximetric model includes the arc discharge area between the cathode and the outlet nozzle of the water plasma torch. The aim of numerical simulation is to demonstrate arc performance for two radiation models involved and to estimate validity of local thermodynamic equlibrium (LTE)conditions within the arc column.

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