Results 11 to 20 of about 2,255,661 (285)
Non-equilibrium modelling of arc plasma torches [PDF]
Journal of Physics D: Applied Physics, 2007 A two-temperature thermal non-equilibrium model is developed and applied to the three-dimensional and time-dependent simulation of the flow inside a DC arc plasma torch. A detailed comparison of the results of the non-equilibrium model with those of an equilibrium model is presented.
Joachim Heberlein +2 more
openaire +4 more sources
Reactive nitrogen plasma spray coating of titanium nitride: plasma torch design and coating analysis [PDF]
arXiv, 2018 In this paper, a thermal DC plasma torch was designed and developed for plasma spraying of a titanium nitride layer. Thermal plasma spray torch is a kind of non-transferred torch which can produce a high energy and high temperature plasma arc jet. Ti powders were injected into the plasma jet interacted with nitrogen plasma, resulted in a thick and hard
Sina Mohsenian +2 more
openalex +3 more sources
MATEC Web of Conferences, 2018 The article is dedicated to nonstationary simulation of DC air plasma torch. The mathematical model for the analysis of plasma jet instability is developed. The proposed 2D axisymmetric model demonstrates the physical processes taking place inside and in
Murashov Iurii +3 more
doaj +2 more sources
Hydrodynamic study of a microwave plasma torch [PDF]
The European Physical Journal Applied Physics, 2011 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.
Gadonna, K. +5 more
openaire +5 more sources
Plasma Processes and Polymers, Volume 20, Issue 1, January 2023., 2022 Hydrogen production via plasma methane pyrolysis is investigated using a microwave plasma torch (MPT) and a gliding arc plasmatron (GAP). The performance of the two plasma sources in terms of methane conversion, product spectrum, and energy efficiency is compared. The physical and chemical properties of the produced carbon particles are compared.
S. Kreuznacht +7 more
semanticscholar +2 more sources
Technology of treatment of building materials with the plasma torch [PDF]
Journal of Physics: Conference Series, 2017 The paper describes the solutions of the building materials heat conduction problems - heating source power and size definition based on temperature measurements on a material surface and on layers, heating source characteristics and surface temperature identification by temperature measurements on a treated area.
R R Galeev +3 more
openaire +5 more sources
Characterization of a 50kW Inductively Coupled Plasma Torch for Testing of Ablative Thermal Protection Materials [PDF]
, 2017 With the development of new manned spaceflight capabilities including NASA's Orion capsule and the Space-X Dragon capsule, there is a renewed importance of understanding the dynamics of ablative thermal protection systems.
Benton R. Greene +4 more
openalex +2 more sources
High-performance electric arc source of ultraviolet radiation to ozone generate [PDF]
E3S Web of Conferences, 2020 Studies of electric arc сombustion in the swirling flow of a cylindrical discharge chamber of a plasma torch at oxygen consumption of 10-160 g/s are carried out.
Veremeychik Andrey +4 more
doaj +1 more source
Validation of computational fluid dynamics method through experimental investigation of the plasma spraying process [PDF]
MATEC Web of Conferences, 2022 Numerical modelling has emerged as a powerful predictive tool to enhance plasma sprayed coatings quality and process efficiency. In the present work, a comprehensive Computational Fluid Dynamics model of a gas heating inside a direct current arc plasma ...
Mbwebwe Justin +3 more
doaj +1 more source
Research on the rapid combustion process of butane under microwave discharge
Scientific Reports, 2022 To study the combustion process of fuel in the microwave plasma torch, we designed a butane microwave plasma device exploiting a tungsten rod as an electrode.
Qiang Tang +4 more
doaj +1 more source