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Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v40.i5.40
pages 399-413

Heat Transfer in the Arc Discharge Channel

Vilma Snapkauskiene
Lithuanian Energy Institute, Plazminiø technologijø sektorius, Breslaujos str. 3, LT-44403 Kaunas, Lithuania
Vitas Valincius
Lithuanian Energy Institute, Plasma Processing Laboratory, Breslaujos 3, 44403 Kaunas, Lithuania
Pranas Valatkevicius
Lithuanian Energy Institute, Breslaujos 3, LT-4440, Kaunas, Lithuania

RESUMO

An experimental approach is presented for the analysis of thermal characteristics of a linear plasma torch with a hot cathode and a step-shaped anode. The experiment is performed in air at atmospheric pressure for discharge currents of 175−245 A and voltage of 200−250 V. The fed gas flow rate varied in the range of (2.5−8.5)·10−3 kg·sec−1 , and the Reynolds number was (4−13)·103. The place of gas injection, flow distribution, and rate affect the heat-transfer characteristics of the plasma source, which were generalized employing the similarity theory.


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