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Mathematical modelling of bubble removal from a glass melting channel with defined melt flow and the relation between the optimal flow conditions of bubble removal and sand dissolution
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SYSNO ASEP 0450836 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Mathematical modelling of bubble removal from a glass melting channel with defined melt flow and the relation between the optimal flow conditions of bubble removal and sand dissolution Tvůrce(i) Cincibusová, Petra (USMH-B) RID, ORCID
Němec, L. (CZ)Zdroj.dok. Glass Technology-European Journal of Glass Science and Technology Part A - ISSN 1753-3546
Roč. 56, č. 2 (2015), s. 52-62Poč.str. 11 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova glass melt ; mathematical modelling ; controlled flow ; space utilization ; temperature gradients Vědní obor RIV JH - Keramika, žáruvzdorné materiály a skla CEP TA01010844 GA TA ČR - Technologická agentura ČR Institucionální podpora USMH-B - RVO:67985891 UT WOS 000354913100003 EID SCOPUS 84943372116 Anotace The bubble removal process was mathematically modelled in a continuous glass melting space with the intention of evaluating the impact of the glass flow character on the processes of bubble removal, when the bubble growth rate and the length of the channel were further variables. The different glass flow patterns in a model horizontal melting channel with a free glass level were implemented with linear temperature gradients applied on the glass level. The recently derived and introduced quantity called utilisation of the space and optimal conditions of beneficial glass flow patterns, which resulted in the spiral melt and bubble trajectories, were applied in all the examined cases by mathematical modelling. The optimal values of the utilisation of the space and the maximal bubble removal performances of the space were calculated. The values of the optimal space utilisation and maximal bubble removal performance were high over the entire considered range of the applied temperature gradients, bubble growth rates and channel lengths. The optimal conditions for bubble removal were comparable with those valid for sand dissolution which provided a chance to operate both processes effectively under identical melt flow conditions, i.e. in a common melting space. The application of the optimal flow character in glass melting furnaces appears promising for high performance facilities or for miniaturisation of the melting space and for decreasing the energy losses of the melting process. Pracoviště Ústav struktury a mechaniky hornin Kontakt Iva Švihálková, svihalkova@irsm.cas.cz, Tel.: 266 009 216 Rok sběru 2016
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