Results 11 to 20 of about 30,015 (273)

Arc Plasma Torch Modeling [PDF]

open access: yesJournal of Thermal Spray Technology, 2009
Arc plasma torches are the primary components of various industrial thermal plasma processes involving plasma spraying, metal cutting and welding, thermal plasma CVD, metal melting and remelting, waste treatment and gas production. They are relatively simple devices whose operation implies intricate thermal, chemical, electrical, and fluid dynamics ...
Trelles, J.P.   +3 more
openaire   +3 more sources

Computational modeling and temperature measurements using emission spectroscopy on a non-transferred plasma torch

open access: yesAIP Advances, 2023
A non-transferred plasma torch is a device used to generate a steady thermal plasma jet. Plasma torches have the potential to replace fossil fuel burners used as heat sources in the process industry.
S. L. Siddanathi   +4 more
doaj   +1 more source

Modelling of a Non-Transferred Plasma Torch Used for Nano-Silica Powders Production

open access: yesApplied Sciences, 2021
In this study, a two-dimensional numerical model was developed to simulate operation conditions in the non-transferred plasma torch, used to synthesis nanosilica powder. The turbulent magnetohydrodynamic model was presented to predict the nitrogen plasma
Ibrahim A. AlShunaifi   +4 more
doaj   +1 more source

LOCAL MECHANICAL PROPERTIES OF ATMOSPHERIC SPRAYED MOLYBDENUM COATINGS DEPOSITED WITH CASCADED PLASMA TORCH

open access: yesActa Polytechnica CTU Proceedings, 2020
Increasing interest for industrial use of thermally sprayed coatings leads to development in most thermal spraying technologies, including atmospheric plasma spraying (APS).
Jakub Antoš   +7 more
doaj   +1 more source

Fullerenes production by electric arc pyrolysis of methane in an AC three-phase plasma torch [PDF]

open access: yesE3S Web of Conferences, 2019
The article deals with a high-voltage three-phase AC plasma torch working as a part of a plasma-chemical facility. The plasma torch consists of three electric arc channels and three rod copper electrodes.
Subbotin D. I.   +6 more
doaj   +1 more source

Effects of induction coil parameters of plasma torch on the distribution of temperature and flow fields

open access: yesAlexandria Engineering Journal, 2021
This paper aims to disclose how the induction coil parameters affects the temperature and flow fields of the inductively coupled plasma (ICP) torch. For this purpose, a numerical model was established for the balanced discharge of the ICP torch based on ...
Jiewen Deng   +3 more
doaj   +1 more source

Characterization of opportunity for upgrading of the system based on arc plasma torch for thermal spaying of ceramic materials, by means of use of fuel vortex intensifier. Part I: Thermodynamic modeling of the system efficiency parameters

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2021
One of the main trends in the field of improving the modern technologies of thermal spraying, including plasma one, for functional ceramic coatings formation is the reducing the energy consumption of the process.
O. G. Devoino   +6 more
doaj   +1 more source

Analysis of De-Laval nozzle designs employed for plasma figuring of surfaces [PDF]

open access: yes, 2016
Plasma figuring is a dwell time fabrication process that uses a locally delivered chemical reaction through means of an inductively coupled plasma (ICP) torch to correct surface figure errors. This paper presents two investigations for a high temperature
Gourma, Mustapha   +3 more
core   +1 more source

Design & experiments on pen-shaped plasma torch for surface modification

open access: yesAlexandria Engineering Journal, 2018
The paper presents design and experiments on pen-shaped plasma torch that generates non-thermal plasma for various surface modification applications. Plasma is used for a variety of industrial applications like surface modifications, surface activation ...
Amitkumar R. Patel, Ajitkumar N. Shukla
doaj   +1 more source

Characterization of a 50kW Inductively Coupled Plasma Torch for Testing of Ablative Thermal Protection Materials Using Non-Air Gases [PDF]

open access: yes, 2018
Thermal protection systems have been a major area of study since the advent of space flight, but recent efforts towards crewed spaceflight missions have placed a new importance on the development of such systems. The 50 kW Inductively Coupled Plasma (ICP)
Cha, Han All
core   +1 more source

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