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Analysis of radial energy loss in an arc heater channel
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SYSNO ASEP 0338620 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Analysis of radial energy loss in an arc heater channel Author(s) Gregor, J. (CZ)
Jakubová, I. (CZ)
Šenk, J. (CZ)
Mašláni, Alan (UFP-V) RIDSource Title High Temperature Materials and Processes - ISSN 1093-3611
Roč. 13, č. 2 (2009), s. 179-188Number of pages 10 s. Publication form web - web Action European High Temperature Plasma Processes (HTPP)/10th./ Event date 07.07.2008-11.07.2008 VEvent location Patras (Patras University) Country GR - Greece Event type EUR Language eng - English Country US - United States Keywords arc heater ; argon ; radiation ; experiment ; mathematical model Subject RIV BL - Plasma and Gas Discharge Physics CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000274202100006 DOI DOI: 10.1615/HighTempMatProc.v13.i2.60 Annotation The paper deals with an experimental modular-type arc heater with the blasted electrical arc burning in argon. Its typical operating parameters are current up to 220 amperes, voltage about 100 volts, and argon flow rate up to 22 grams per second. Numerous experiments were carried out and many sets of integral quantities were measured. The measured data, including the arc current I, the arc voltage U, the flow rate of the working gas G, and the energy loss of the arc heater channel Pz, served as the input data of a mathematical-physical model describing phenomena inside the arc heater channel. The analysis of measured and computed data has proved radiation to be the main mechanism of radial energy transfer from the arc to the channel wall. The obtained temperature dependency of the specific radiation coefficient of argon is given in figures and compared with theoretically computed data. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2010
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