Glass melting and its innovation potentials: The combination of transversal and longitudinal circulations and its influence on space utilisation

0367115 - ÚACH 2012 RIV NL eng J - Journal Article
Polák, M. - Němec, Lubomír
Glass melting and its innovation potentials: The combination of transversal and longitudinal circulations and its influence on space utilisation.
Journal of Non-Crystalline Solids. Roč. 357, 16-17 (2011), s. 3108-3116. ISSN 0022-3093. E-ISSN 1873-4812
R&D Projects: GA MPO 2A-1TP1/063
Institutional research plan: CEZ:AV0Z40320502
Keywords : space utilisation * sand dissolution * bubble removal * flow patterns * model furnace
Subject RIV: JH - Ceramics, Fire-Resistant Materials and Glass
Impact factor: 1.537, year: 2011

This work deals with the increase of the space utilisation caused by changes in glass circulations resulting from different temperature gradients in the melting channel. The space utilisation values were calculated by mathematical modelling of particle dissolution and bubble rising in a model melting channel. It has been found that for a given sand-dissolution time and bubble-growth rate, the space utilisation value was determined as the ratio between transversal and longitudinal temperature gradients. The highest space utilisation values for both dissolution and bubble removal are reached when both types of temperature gradients are combined and the transversal temperature gradient is 5-10 times higher than the longitudinal one. A cautious application of optimal conditions in the model glass furnace leads to an increase in the furnace space utilisation.
Permanent Link: http://hdl.handle.net/11104/0201892