Radiation in water-vortex stabilized electric arc - comparison among different models
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F05%3APU48755" target="_blank" >RIV/00216305:26220/05:PU48755 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Radiation in water-vortex stabilized electric arc - comparison among different models
Original language description
The present paper deals with numerical modelling of electric arc stabilized by water vortex. Two-dimensional axisymmetric model includes the arc discharge area between the cathode and the outlet nozzle of the water plasma torch. Thermal, electrical and fluid-dynamic characteristics as well as power losses of such arc has been studied for the range of currents 150-600 A and three different radiation models (net emission coefficient, net emission approach with reabsorption, partial characteristics). It waas proved that the amount of energy losses transferred radially from the arc by conduction and radiation range between 70 and 35 % of the input power. Temperature and velocity fields within the discharge are close to each other for the partial characteristics model and for the net emission model with zero reabsorption of radiation. Calculations carried out by the partial characteristics method showed that reabsorption of radiation in arc fringes reaches about 26 % for the studied range o
Czech name
Záření elektrického oblouku s vodní stabilizací - porovnání různých modelů
Czech description
Práce se zabývá numerickým modelováním záření v elektrickénm oblouku s vodní vírovou stabilizací. Vzájemně se porovnávají 3 modely záření - "net emission coefficients", "net emission + reabsorpce" a "metoda parciálních charakteristik". Množství vyzářenéenergie se pohybuje v rozmezí 70 až 30% příkonu.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BL - Plasma physics and discharge through gases
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA102%2F03%2F0813" target="_blank" >GA102/03/0813: Improvement of the selected parameters of low voltage electric machines</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
High Temperature Material Processes: An International Journal
ISSN
1093-3611
e-ISSN
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Volume of the periodical
8
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
195-205
UT code for WoS article
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EID of the result in the Scopus database
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