Plasma torch for supersonic plasma spray at atmospheric pressure

An Atmospheric Pressure Microwave Plasma Torch

Microwave plasma sources at atmospheric pressure have a variety of different applications and therefore are object of intense research. This paper covers the spectroscopic investigation of an atmospheric pressure microwave plasma torch and experiments concerning the abatement of the perfluorinated compounds CF4 and SF6. By means of optical emission spectroscopy the gas temperature of a humid ai...

Plasma-Assisted Deposition at Atmospheric Pressure

In plasma-assisted deposition methods the activation energy necessary for the initiation of chemical reactions is transferred via charged particles. Due to this fact in many cases the process temperature can be kept small, if gas discharges at pressures below 1 hPa are used. On the other hand low pressure requires a great deal of vacuum equipment. Processes at atmospheric pressure are more favo...

Spatial Characteristics and Application of Atmospheric Pressure Microwave Nitrogen Plasma Torch

Abstract. Microwave (MW) torches are typically used to produce equilibrium plasmas for various environmental or industrial applications. We use Litmas Red MW torch (2.45 GHz, 3 kW), which is able to generate plasma in a state close to Local Thermodynamic Equilibrium (LTE) in temperature range of 1000-5000 K at atmospheric pressure. We present spatial characteristics of the generated MW plasma a...

Modification of glassy carbon surfaces by atmospheric pressure cold plasma torch

Nanosecond pulse plasma assisted ignition simulations at atmospheric pressure

Ignition assistance by a pulsed applied voltage is investigated in a canonical one-dimensional configuration. An incipient ignition kernel, formed by localized energy deposition into a lean mixture of methane and air at atmospheric pressure, is subjected to sub-breakdown electric fields by a DC potential applied across the domain, resulting in non-thermal behavior of the electron sub-fluid form...