Modelling of the controlled melt flow in a glass melting space – Its melting performance and heat losses

0450583 - ÚSMH 2016 RIV NL eng J - Článek v odborném periodiku
Jebavá, Marcela - Dyrčíková, Petra - Němec, Lubomír
Modelling of the controlled melt flow in a glass melting space – Its melting performance and heat losses.
Journal of Non-Crystalline Solids. Roč. 430, DEC 15 (2015), s. 52-63. ISSN 0022-3093. E-ISSN 1873-4812
Institucionální podpora: RVO:67985891
Klíčová slova: glass melt flow * mathematical modelling * energy distribution * space utilizatios * melting performance
Kód oboru RIV: JH - Keramika, žáruvzdorné materiály a skla
Impakt faktor: 1.825, rok: 2015

The factors influencing the character of the melt flowwere defined and examined in a model glass melting space. The batch blanket was simulated by an inflowing glass melt with sand particles and bubbles and the heating elements by the defined volumes of the melt where heat was evolved. The character of the melt flow was set up by a proper arrangement of the heating elements in the space. The sand dissolution and the bubble removal were modelled in the space; the space utilization, melting performance, and heat losses were calculated. The required character of the melt flow was brought about by the energy evolution in the region of the longitudinal space axis and by the supply of a substantial part of energy to the region beneath the inflowing melt. The results of the modelling have confirmed that the suitable flow character in the space was a helical-like flow, which was attained by the combination of an almost uniform forward flowwith imposed transversal melt circulations. High values of the space utilization, several times higher melting performance and proportionally lower specific heat losses were acquired when compared with the values attained under conditions simulating the melt flow in industrial melting furnaces.
Trvalý link: http://hdl.handle.net/11104/0251911