Design of a Cool Color Glaze for a Solar Reflective Tile

Abstract:

One of the most common materials-measures to counteract Urban Heat Island Effect can be identified in cool roof: white surface characterized by high solar reflectance and high thermal emissivity. One of the problems for the realization of cool roof is the difficult matching of white color with urban planning needs. In order to better integrate cool roofs into skylines cool colors were developed integrating pigments into cool roof surfaces. Cool roof market is actually dominated by organic based products with optimal solar performances but low durability against ageing. The use of ceramic-based products is crucial in the design of a new durable cool roof thanks to their naturally high thermal emissivity (ε=0.90) and their high chemical durability. The development of a new ceramic-based product made by a traditional porcelain stoneware tile as support, an inorganic engobe was started in the last years. In order to complete the product with a suitable glaze, eight different inorganic pigments were added to three different glazes, each one characterized by different surfaces features. Even if the addition of glazes, and pigments decrease the reflectance values of the solar reflective engobe, some promising results were achieved in this study especially regarding warm colored glazes.

• Periodical: Advances in Science and Technology (Volume 92)
• Pages: 159-167
• DOI: https://doi.org/10.4028/www.scientific.net/AST.92.159
• Online since: October 2014
• Authors: Chiara Ferrari*, Alberto Muscio, Cristina Siligardi, Tiziano Manfredini
• Keywords: Ceramic Glaze, Cool Colors, Engobed Tiles, Solar Reflectance

References

[1] L.G. Swan, V.I. Ugursal, Renewable and Sustainable Energy Reviews, 13 (2009) 1819-1835.

[2] IEA International Energy Agency, Technical report, (2010).

[3] A. Hashem, S.R. Leanna, Journal of the Human-Environmental System, 11 (2008).

[4] M. Santamouris, Solar Energy (2012) in press.

[5] L. Doulos, M. Santamouris, I. Livada, Solar Energy, 77 (2004) 231-249.

DOI: 10.1016/j.solener.2004.04.005

[6] S. Bretz, H. Akbari, A. Rosenfeld, Atmospheric Environment, 32 (1998) 95-101.

[7] A. Synnefa, M. Santamouris, I. Livada, Solar Energy, 80 (2006) 968-981.

DOI: 10.1016/j.solener.2005.08.005

[8] D. Kolokotsa, P. Maravelaki-Kalaitzaki, S. Papantoniou, E. Vangeloglou, M. Saliari, T. Karlessi, M. Santamouris, Solar Energy, 86 (2012) 1648-1659.

DOI: 10.1016/j.solener.2012.02.032

[9] R. Levinson, P. Berdahl, H. Akbari, Solar Energy Materials and Solar Cells, 89 (2005) 319-349.

DOI: 10.1016/j.solmat.2004.11.012

[10] R. Levinson, P. Berdahl, H. Akbari, Solar Energy Materials and Solar Cells, 89 (2005) 351-389.

DOI: 10.1016/j.solmat.2004.11.013

[11] Y. Ma, X. Zhang, B. Zhu, K. Wu, Solar Energy, 72 (2002) 511-520.

[12] T. Karlessi, M. Santamouris, K. Apostolakis, A. Synnefa, I. Livada, Solar Energy, 83 (2009) 538-551.

DOI: 10.1016/j.solener.2008.10.005

[13] C. Ferrari, A. Libbra, A. Muscio, C. Siligardi, Ceramics International, 39 (2013) 9583-9590.

DOI: 10.1016/j.ceramint.2013.05.077

[14] ASTM (1996). ASTM E 903-96 – Standard test method for solar absorptance, reflectance, and transmittance of materials using integrating spheres. Standard of the American Society for Testing and Materials.

DOI: 10.1520/e0903-96

[15] C. Ferrari, A. Libbra, A. Muscio, C. Siligardi, Advances in Building Energy Research, 7 (2013) 244-253.

DOI: 10.1080/17512549.2013.865563

[16] R. Levinson, H. Akbari, P. Berdahl, Solar Energy, 84 (2010) 1717-1744.