Skip to main content Accessibility help
×
Home

BATCH PROCESSING IN A GLASS FURNACE

  • NEVILLE D. FOWKES (a1) and ANDREW P. BASSOM (a1) (a2)

Abstract

In a glass furnace solid batches of material are fed into a chamber and radiation heating applied. An individual batch is melted over the course of several minutes to form molten glass. A travelling front within the batch designates the progress of the melting, a process characterized by multiple radiation reflections. This results in an effective conductivity within the melting zone that is significantly larger than that in the unmelted batch. Approximations based on these disparate conductivities enable accurate explicit expressions for the almost constant melting front speed and the associated temperature profile to be derived. Our results compare favourably with existing numerical simulations of the process, with the advantage of being both analytic and relatively simple. These predictions may be useful in suggesting how a furnace might be most effectively controlled under varying batch conditions, as well as ensuring the quality of the glass sheets produced.

Copyright

Corresponding author

References

Hide All
[1]Auchet, O., Riedinger, P., Malasse, O. and Iung, C., “First-principles simplified modelling of glass furnaces combustion chambers”, Control Engineering Practice 16 (2008) 14431456 doi:10.1016/j.conengprac.2008.04.005.
[2]Carslaw, H. S. and Jaeger, J. C., Conduction of heat in solids (Oxford University Press, Oxford, 1959).
[3]Howell, P. D., “Extensional thin layer flows”, Ph.D. Thesis, St Catherines College Oxford, 1994, http://eprints.maths.ox.ac.uk/25/1/howell.pdf.
[4]Le Bourhis, E., Glass: mechanics and technology (Wiley-VCH, Weinheim, 2008).
[5]Proceedings of South African Maths in Industry Study Group, 2013,http://www.wits.ac.za/newsroom/21966/outcomes.html.
[6]Rosseland, S., Theoretical astrophysics (Clarendon Press, Oxford, 1936).
[7]Schick, V., Remy, B., Degiovanni, A. and Demeurie, F., “Measurement of thermal conductivity of liquids at high temperature”, J. Phys: Conf. Ser. 395 (2012) Article 012078; doi:10.1088/1742-6596/395/1/012078. 6th European Thermal Sciences Conference (Eurotherm 2012).
[8]Shibata, H., Suzuki, A. and Ohta, H., “Measurement of thermal transport properties for molten silicate glasses at high temperatures by means of a novel laser flash technique”, Mater. Trans. 46 (2005) 18771881 doi:10.2320/matertrans.46.1877.
[9]Siegel, R. and Howell, J. R., Thermal radiation heat transfer, 4th edn (Taylor & Francis, London, 2002).
[10]Tooley, F. V., The handbook of glass manufacture, books for industry (Ashlee Publishing, New York, 1974).
[11]Wu, X. and Viskanta, R., “Modelling of heat transfer in the melting of a glass batch”, J. Non-Crystaline Solids 80 (1986) 613622 doi:10.1016/0022-3093(86)90454-0.
MathJax
MathJax is a JavaScript display engine for mathematics. For more information see http://www.mathjax.org.

Keywords

BATCH PROCESSING IN A GLASS FURNACE

  • NEVILLE D. FOWKES (a1) and ANDREW P. BASSOM (a1) (a2)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed