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Thermophysics and Aeromechanics

2006 year, number 3

The effect of a ledge in outlet electrode on operation efficiency of the two-chamber plasmatorch

A.S. An'shakov1, E.K. Urbakh1, A.E. Urbakh1, V.A. Faleev1, M.V. Cherednichenko2, and M.A. Shelest2
1Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
2Novosibirsk State Technical University, Novosibirsk, Russia
Pages: 455-461


Electric and thermal characteristics of the two-chamber plasmatorch with a stepped outlet electrode were studied experimentally. Formulas for determination of arc voltage, plasmatorch efficiency, and length of a narrow part of the outlet electrode were derived. It is shown that such a plasmatorch is more efficient than the plasmatorch with a smooth outlet electrode.