Model for batch-to-glass conversion: coupling the heat transfer with conversion kinetics
| Autor: | Miroslava Vernerová, Pavel R. Hrma, Richard Pokorný, Albert A. Kruger, Pavel Ferkl, Jaroslav Kloužek |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Melting furnace Kinetics Thermodynamics Clay industries. Ceramics. Glass modeling 02 engineering and technology 021001 nanoscience & nanotechnology glass melting 01 natural sciences Coupling (electronics) Condensed Matter::Soft Condensed Matter TP785-869 kinetics 0103 physical sciences Heat transfer Ceramics and Composites Glass melting soda-lime-silica 0210 nano-technology |
| Zdroj: | Journal of Asian Ceramic Societies, Vol 0, Iss 0, Pp 1-13 (2021) |
| ISSN: | 2187-0764 |
| Popis: | This study describes the development of a batch-to-glass conversion model for a container-glass melting furnace. The model accounts for the relationship between the temperature history of the batch particles, batch properties, and the rate of melting by coupling the heat transfer and batch conversion kinetics models. The heat transfer within the batch is modeled by a spatially one-dimensional, convective-conductive heat balance, while the conversion kinetics is described using stretched exponential, differential Avrami, and Šesták–Berggren models based on silica dissolution data. We show that the simulated melting rate significantly changes when the conversion kinetics is considered, indicating a critical importance of the temperature history of the feed particles for the glass melting process. Finally, we summarize the limitations of the batch model and discuss the key factors to be accounted for in more advanced versions. |
| Databáze: | OpenAIRE |
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