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Hydrodynamic study of a microwave plasma torch

  • K. Gadonna (a1), O. Leroy (a1), T. Silva (a2), P. Leprince (a1), C. Boisse-Laporte (a1) and L.L. Alves (a2)...

Abstract

A hydrodynamic model was developed to simulate the flow and the heat transfer with the gas/plasma system produced by a microwave-driven (500–900 W at 2.45 GHz) axial injection torch, running in atmospheric pressure helium at 3–9 L min−1 input gas flows. The model solves the Navier-Stokes’ equations, including the effect of the plasma upon the momentum and the energy balance, in order to obtain the spatial distributions of the gas velocity and temperature. The model predicts average gas temperatures of 2500–3500 K, in the same range of those obtained by optical measurements. Simulations show that the plasma influences the gas flow path and temperature, promoting an efficient power transfer.

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Hydrodynamic study of a microwave plasma torch

  • K. Gadonna (a1), O. Leroy (a1), T. Silva (a2), P. Leprince (a1), C. Boisse-Laporte (a1) and L.L. Alves (a2)...

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