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Effect of Vortex Motion of Stabilizing Liquid Wall on Properties of Arc in Water Plasma Torch a
Author(s) -
JENIŠTA JIŘÍ,
HRABOVSKÝ MILAN,
KOPECKÝ VLADIMÍR
Publication year - 1999
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.1999.tb08753.x
Subject(s) - arc (geometry) , plasma , mechanics , vortex , plasma arc welding , jet (fluid) , plasma torch , chemistry , electric arc , evaporation , ionization , atomic physics , materials science , physics , thermodynamics , electrode , ion , mechanical engineering , organic chemistry , quantum mechanics , engineering
In water stabilized plasma torches an electric arc is ignited in a centre of water vortex which is created in cylindrical arc chamber with tangential water injection. The arc is stabilized by an interaction with inner wall of the vortex. Principle physical mechanisms which control arc properties and parameters of generated plasma jet are evaporation of water wall and heating and ionization of vapour flowing from the wall into the arc column. The vortex movement of water is necessary to maintain fixed shape of inner wall of the vortex due to inertial forces. Published model of mechanisms of water stabilized arc does not consider effect of movement of water on mechanisms of arc 1. The aim of investigation described in this paper is theoretical and experimental study of the effect of movement of water and induced tangential component of velocity of plasma in the arc column on properties of arc and generated plasma jet.