plasma arc Articles

  • Confined plasma gliding arc discharges

    A confined plasma gliding arc is produced in a reactor with two-electrodes contained within a very narrow channel and water spray injected into the discharge. The evolution of pH and conductivity and the formation of hydrogen peroxide in pure water with different carrier gases and the decolourisation and mineralisation of an organic dye were compared with results for a non-confined ...


    By Inderscience Publishers

  • Large-scale synthesis of nanopowders by transferred arc thermal plasma

    The present work describes the preliminary results on large-scale synthesis and characterisation of copper (Cu) and aluminium nitride (AlN) nano powders by transferred arc thermal plasma technique. The transferred arc was used to vaporise the precursor materials (Cu, Al metal 99.9% pure). Nano particles are formed in the gas phase as a result of homogeneous nucleation. The vapours of Al were ...


    By Inderscience Publishers

  • FAQ About Plasma Arc Gasfication Process from Plasma Waste Recycling, Inc (PWR)

    What is Municipal Solid Waste? Municipal solid waste (MSW)—more commonly known as trash or garbage—consists of everyday items such as product packaging, grass clippings, furniture, clothing, bottles, food scraps, newspapers, appliances, paint and batteries. It does not contain industrial, hazardous, or construction waste. Since 1980, the total annual volume of MSW generated in the U.S. has ...


  • Synthesis of uncapped silver nanoparticles using DC arc plasma technique: effect of change in plasma gas on morphological properties

    Uncapped silver nanoparticles were synthesised using hitherto unexplored DC arc thermal plasma technique using Ar, He and mixture of Ar and He as plasma gases. Effect of change in plasma gases on the morphological properties of synthesised nanoparticles has been studied. XRD revealed formation of phase pure cubic silver. TEM study disclosed formation of nanoparticles with size in the range of ...


    By Inderscience Publishers

  • Non-Thermal Plasma degradation of wastewater in presence of titanium oxide by gliding arc discharge

    Degradation of polluted plastic and rubber wastewater using the plasmachemical and plasmacatalytic process has been studied by non-thermal gliding arc technique. The gaseous species formed in the discharge, and especially the °OH radicals, induced strong oxidising effects in the target solution. The treatment with TiO2 photo-catalyst led to a degradation of 80% in 60 min, a decrease of turbidity ...


    By Inderscience Publishers

  • Characteristics of rotating arc for CF4 removal

    Characteristics of CF4 treatment process with a rotating arc are investigated under different thermal and non-thermal plasma conditions. To generate high temperature or non-thermal plasma conditions, a rotating arc reactor is operated with various operating conditions, which are species of carrier gases, flow rates, and input power. Test results reveal that that high temperature conditions caused ...


    By Inderscience Publishers

  • Plasma Arc Waste Destruction System (PAWDS) - A novel approach to waste elimination aboard ships

    The Plasma Arc Waste Destruction System (PAWDS) uses plasma energy, with temperatures over 5,000 oC, to rapidly and efficiently destroy combustible waste aboard ships. PAWDS has proven itself to be a viable alternative to traditional incinerators. In September 2003, Carnival Cruise Lines were the first to install a PAWDS aboard their 2,056 passenger (plus 1,000 crew members) capacity, M/S ...


    By PyroGenesis Canada Inc.

  • Treatment of ship sludge oil using a plasma arc waste Destruction system (PAWDS)

    The Plasma Arc Waste Destruction system (PAWDS) uses a plasma torch to quickly gasify solid  waste on board ships. Developed under the support of the US Navy, this compact one deck system has been in commercial operation on board a cruise ship for more than three years. With the support of Carnival Cruise Lines and the National Research Council of Canada, the PAWDS was recently modified in ...


    By PyroGenesis Canada Inc.

  • Let’s talk plasma

    Usually when I attend a conference on behalf of Tetronics I am about the average age of the other delegates. Not this time. Suddenly, I am old enough to be the father of most of the other people here, because this is a university-based conference hosted by the University of Liverpool. Yes, this is the snappily-titled International Workshop on Plasmas for Energy and Environmental Applications, or ...

  • Plasma gasification: Harnessing the power of lightning

    Plasma gasification is both a high-tech solution to the problem of waste management and a source of renewable power. The technology has great potential, but can it move from the fringes to the mainstream? The name "plasma gasification" conjures up images of men in lab coats late at night, investigating a far-flung corner of science that is light years away from commercial readiness. In reality it ...


  • The Plasma Processing of Steel Plant Wastes

    ABSTRACT: Electric arc furnace (EAF) dusts, have been successfully treated in plasma-fired carbothermic reduction furnaces to recover metal values. Although the technology is equally applicable across the range from plain carbon to stainless steels, historically, it is the latter that has been the more commercially successful. Because the plasma heat source is independent of process chemistry, ...

  • Plasma–chemical and photo–catalytic degradation of methyl orange

    Non–thermal atmospheric humid air plasma is used to investigate chemical reactions mechanisms of predominantly produced neutral hydroxyl radicals by gliding arc discharges with Methyl Orange (MO). UV/visible spectroscopy and electrochemical measurements were performed. Treated solutions show that highly reactive HO• radicals interaction favours the creation of intermediate ...


    By Inderscience Publishers

  • Hiden ESPion plasma probe measurements on a hollow-cathode based large-volume plasma source

    Vacuum-based surface engineering and coating processes require plasma sources generating a high charge carrier density in order to achieve enhanced sputter and activation effects. Fraunhofer FEP is providing a hollow-cathode based plasma source, which produces homogeneous large-volume plasmas of up to 1 m3 with maximum plasma densities of more than 1012 cm-3 at chamber pressures between 0.1 and ...


    By Hiden Analytical

  • Fly Ash Treatment – Plasma Torches versus Graphite Electrodes

    Background Plasma generating devices have to be designed to tolerate incredibly harsh conditions during operation and in particular very high heat loads and temperatures around the arc. However, when used in the vitrification of highly chlorinated materials the challenge is even greater than in other applications. The combination of high ...

  • 25 Years of Success – Outokumpu Stainless DC Plasma Smelting Facility

    Design is not just what is looks and feels like. Design is how it works. Between 1982 and 1987, British Steel (Outokumpu today) made extensive investigations into the treatment of steel dust. Their research was far and wide and covered off many various methods of recycling, including alternative to plasma technologies. But, in 1985, they engaged Tetronics International to carry out a ...

  • Who Can Benefit from PWR`s Plasma Gasification? What are the Applications?

    Plasma Waste Recycling, Inc"s unique and patent-pending Plasma Arc Gasification process gasifies, rather than incinerates, waste into energy. Using a 100% oxygen free process and the extreme high temperatures created through a blend of tried-and-true technologies utilizing a non-incinerating plasma arc method, all types of waste can be broken down into three primary outputs. The majority of ...


  • Plasma gasification and vitrification of ash – conversion of ash into glass-like products and syngas

    The Plasma Gasification and Vitrification of Ash (PGVA) system is a patented process that uses energy generated by plasma arcs along with the controlled addition of small amounts of air and steam to convert the organic portion of ash into a synthesis gas (gasification) and the inorganic portion into a glassy rock (vitrification). The vitrification of the ash’s inorganic portion ...


    By PyroGenesis Canada Inc.

  • Plasma Waste Recycling, Inc Hires Al Nunley as Director of Marketing

    Plasma Waste Recycling, Inc Hires Al Nunley as Director of Marketing Previous Successes in Multiple Roles Provides Advantages to PWR Huntsville, AL, June 24, 2010 – Plasma Waste Recycling, Inc (PWR) of Huntsville, AL announced today that it has hired Alvin Nunley, III as ...


  • Environmental impact of ship hull repair

    This study presents an environmental analysis of a number of cutting and joining processes taking place during the ship hull repair. These processes include oxy-acetylene cutting, plasma arc cutting, shielded metal arc welding, flux core arc welding and submerged arc welding. The processes are modelled in terms of their environmental impact. The environmental-related inputs and outputs of each ...


    By Inderscience Publishers

  • Techniques for processing industrial waste using arcplasma generated by the twelve-phase alternating current

    We have already presented an arc-discharging plasma generator, generally called a thermal plasma generator which is constructed by the six-phase alternating current power supply(Matsuura et al, 1994a, 1997). A more effective thermal plasma generator can construct by expanding this concept. As an example, this small power supply system has been presented in reference (Matsuura et al., 1994b). In ...


    By ORBIT e.V.

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