Modeling batch melting: Roles of heat transfer and reaction kinetics

0534192 - ÚSMH 2021 RIV US eng J - Journal Article
Pokorný, Richard - Hrma, P. - Lee, S. - Kloužek, Jaroslav - Choudhary, M.K. - Kruger, A.A.
Modeling batch melting: Roles of heat transfer and reaction kinetics.
Journal of the American Ceramic Society. Roč. 103, č. 2 (2020), s. 701-718. ISSN 0002-7820. E-ISSN 1551-2916
Institutional support: RVO:67985891
Keywords : foams * glass melting * modeling * model * processing * X-ray computed tomography
OECD category: Ceramics
Impact factor: 3.784, year: 2020
Method of publishing: Limited access
https://ceramics.onlinelibrary.wiley.com/doi/epdf/10.1111/jace.16898

Development of mathematical models of heat and mass transfer in glass-melting furnaces began in the 1970s and progressed rapidly with advances in sophisticated experimental/numerical techniques and increasing computational power. Today, practically all newly built or rebuilt furnaces are optimized with these models to meet stringent quality requirements, reduce the unit costs of manufacturing, or control emissions. One remaining hurdle is to model the batch-to-glass conversion accurately enough to reliably assess the glass production rate. This article summarizes two key aspects of the batch-conversion modeling-the heat transfer and the kinetics of conversion-and reviews the current state-of-the-art approaches to simulating them. We critically examine the advantages of the commonly used heat transfer approach, but also explain that its predictive capabilities are significantly restricted by the dependence of batch thermal properties on the time-temperature history. We argue that kinetic approaches to the batch-conversion modeling would offer a significant improvement when coupled with the heat transfer approach. Finally, we summarize key areas requiring further research on the way toward a realistic model of the batch blanket.
Permanent Link: http://hdl.handle.net/11104/0312419