EXPERIMENTAL MANUFACTURE OF HEAT INSULATING PLATES BY EXPANDING THE GLASS WASTE IN THE MICROWAVE FIELD
Keywords:
heat insulating plates, microwave, glass waste, silicon carbide, coal ash, energy consumption
Abstract
The paper presents experimental results of manufacturing in microwave field of heat insulating plates by expanding a powder mixture of glass waste, coal ash, silicon carbide and water pressed into a mold with walls made of silicon carbide. The best variants corresponded to silicon carbide ratios of 2.9 and 3.0 wt.% and coal ash of 10 wt.%. The samples characteristics were almost similar to those industrially made by conventional methods: low apparent density (0.33-0.34 g/cm3), high compressive strength (1.7-1.9 MPa) and water absorption almost zero. The specific energy consumption had low values (1.01-1.04 kWh/kg), being comparable to that achieved by conventional techniques in the industrial production, although the conditions of small-scale experiments were obviously disadvantageous.
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4. Neoporm Insulating Foamglass. http://www.a-stess.com/
5. Neoporm foam glass and the materials on its base, February, (2014). www.belglas.files.wordpress.com/2014/02/neoporm.pdf
6. Gomel Glass. http://www.gomelglass.by/en/catalogue/foam-glass/
7. Kharissova, O.V., Kharissov, B.I., Ruiz Valdés, J.J., Review: The use of microwave irradiation in the processing of glasses and their composites, Industrial & Engineering Chemistry Research, Vol. 49, No. 4, pp. 1457-1466, (2010).
8. Axinte, S.M., Paunescu, L., Dragoescu, M.F., Sebe, A.C., Manufacture of glass foam by predominantly direct microwave heating of recycled glass waste, Transactions on Networks and Communications, Vol. 7, No. 4, pp. 37-45, August, (2019).
9. Dragoescu, M.F., Paunescu, L., Axinte, S.M., Fiti, A., The use of microwave fields in the foaming process of flat glass waste, International Journal of Engineering Sciences & Management Research, Vol. 5, No. 4, pp. 49-54, April, (2018).
10. Dragoescu, M.F., Paunescu, L., Axinte, S.M., Fiti, A., Foam glass with low apparent density and thermal conductivity produced by microwave heating, European Journal of Engineering and Technology, Vol. 6, No. 2, pp. 1-9, April, (2018).
11. Paunescu, L., Axinte, S.M., Grigoras, B. T., Dragoescu, M.F., Fiti, A., Testing the use of microwave energy to produce foam glass, European Journal of Engineering and Technology, Vol. 5, No. 4, pp. 8-17, (2017).
12. Paunescu, L., Dragoescu, M.F., Axinte, S.M., Foam glass gravel from recycled glass waste produced with microwave energy, Nonconventional Technologies Review, Vol. 24, No. 2, pp. 22-28, (2020).
13. Jones, D.A., Lelyveld, T.P., Mavrofidis, S.D., Kingman, S.W., Miles, N.J., Microwave heating applications in environmental engineering-a review, Resources, Conservation and Recycling, Vol. 34, pp. 75-90, (2002).
14. Kitchen, H.J., Vallance, S.R., Kennedy, J.L., Tapia-Ruiz, N., Carassiti, L., Harrison, A., Whittaker, A.G., Drysdale, T.D., Kingman, S.W., Gregory, D.H., Modern microwave methods in solid-stste inorganic materials chemistry: From fundamentals to manufacturing, Chemical Review, Vol. 114, pp. 1170-1206, (2013).
15. Rahaman, M.N., Sintering of ceramics, CRC Press, Taylor & Francis Group, Boca Raton, London, New York, (2007).
16. Dragoescu, M.F., Paunescu, L., Axinte S.M., Fiti, A., Ibfluence of the color of bottle glass waste on the characteristics of foam glass produced in microwave field, International Journal of Science and Engineering Investigations, Vol. 7, No. 72, pp. 95-100, (2018).
17. Yao, Z.T., Ji, X.S., Hi, Y.Q., A comprehensive review on the applications of coal fly ash, Earth-Science Reviews, February, (2015). https://doi.org/10.1016/j.earscirew.2014.11.016
18. Kolberg, U., Roemer, M., Reacting of glass, Ceramic Transaction, Vol.111, pp. 517-523, (2001).
19. Knox, M., Copley, G., Use of microwave radiation for the processing of glass, Glass Technology, Vol. 38, No. 3., pp. 91-96, (1997).
20. Manual of weighing applications, Part 1, Density, (1999). http://www.docplayer.net/21731890-Manual-of-weighing-applications-part-1-density_html
21. Anovitz, L.M., Cole, D.R., Characterization and analysis of porosity and pore structures, Reviews in Mineralogy and Geochemistry, Vol. 80, pp. 61-164, (2005).
22. Hurley, J., Glass-Research and Development, Final report, A UK market survey for foam glass, The Waste and Resources Action Programme Publication, Banbury, Oxon, UK, (2003).
Published
2020-12-31
How to Cite
Paunescu, L., Axinte, S., & Cosmulescu, F. (2020). EXPERIMENTAL MANUFACTURE OF HEAT INSULATING PLATES BY EXPANDING THE GLASS WASTE IN THE MICROWAVE FIELD. Nonconventional Technologies Review, 24(4). Retrieved from http://revtn.ro/index.php/revtn/article/view/307
Section
Articles
Copyright (c) 2020 Lucian Paunescu, Sorin Mircea Axinte, Felicia Cosmulescu
This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.
