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The optimal parameters of bubble centrifuging in glass melts
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SYSNO ASEP 0367127 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The optimal parameters of bubble centrifuging in glass melts Author(s) Tonarová, V. (CZ)
Němec, Lubomír (UACH-T)
Kloužek, Jaroslav (UACH-T)Source Title Journal of Non-Crystalline Solids. - : Elsevier - ISSN 0022-3093
Roč. 357, 22-23 (2011), s. 3785-3790Number of pages 6 s. Language eng - English Country NL - Netherlands Keywords glass ; bubble ; centrifuging ; modelling Subject RIV JH - Ceramics, Fire-Resistant Materials and Glass R&D Projects 2A-1TP1/063 GA MPO - Ministry of Industry and Trade (MPO) CEZ AV0Z40320502 - UACH-T (2005-2011) UT WOS 000295911800016 DOI 10.1016/j.jnoncrysol.2011.07.028 Annotation The mathematical model of a multicomponent bubble in a glass melt under the influence of gravitational and centrifugal fields has been applied in the model TV glass. The optimal fining conditions have been examined in a rotating cylinder with the aim of determining their general features. All of the dependences between the bubble-removal time and the rotational velocity showed the region of bubble removal by centrifuging at low cylinder rotational velocities and the region of complete bubble dissolution when the rotation was intensive. The low rotational velocities, characterised by the minimal bubble-centrifuging time, appeared to be suitable for industrial application. Consequently, the influence of temperature, pressure and glass-layer thickness on the value of the optimal rotational velocity and optimal fining time of small-critical bubbles has been investigated in detail in a glass melt containing fining agent. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2012
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