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Steam torch plasma modelling

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F17%3A00474251" target="_blank" >RIV/61389021:_____/17:00474251 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1007/s11090-017-9789-7" target="_blank" >http://dx.doi.org/10.1007/s11090-017-9789-7</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/s11090-017-9789-7" target="_blank" >10.1007/s11090-017-9789-7</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Steam torch plasma modelling

  • Original language description

    Numerical modelling of physical properties and processes in an electric arcnstabilized by a water vortex (steam torch) has been summarized in this review paper. One-fluid MHD equations are numerically solved for an axisymmetric thermal plasma flow inside a discharge chamber of the steam plasma torch. The steady state solution results are discussed for the range of currents 300–600 A with relatively low steam flow rate of about 0.3 g s-1. The maximum obtained velocities and temperatures—8500 m s-1, 26,300 K, are reported at the centre of the nozzle exit for 600 A. The evaporation of water, i.e. mass flow rate of steam, was predicted from a comparison between the present simulation and experiments. The generated plasma is mildly compressible (M<0.7) with the inertial forces overwhelming the magnetic, viscous, centrifugal and Coriolis forces with the factor of 103. Our calculations showed that the most significant processes determining properties of the arc are the balance of the Joule heat with radiation and radial conduction losses from the arc. Rotation of plasma column due to the tangential velocity component has a negligible effect on the overall arc performance, however, the rotation of water induces fluctuations in the arc and in the plasma jet with characteristic frequency which is related to the frequency of rotation of water. Reabsorption of radiation occurs at the radial position higher than 2.5 mm from the arc axis.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10305 - Fluids and plasma physics (including surface physics)

Result continuities

  • Project

    <a href="/en/project/GA15-19444S" target="_blank" >GA15-19444S: Reforming of gas and liquid hydrocarbons and organics in steam and CO2 thermal plasma jets</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Plasma Chemistry and Plasma Processing

  • ISSN

    0272-4324

  • e-ISSN

  • Volume of the periodical

    37

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    35

  • Pages from-to

    653-687

  • UT code for WoS article

    000399165200008

  • EID of the result in the Scopus database

    2-s2.0-85011586456