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
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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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
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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