Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6775470 | Sustainable Cities and Society | 2018 | 8 Pages |
Abstract
A base ceramic tile has been coated with glass beads: glass spheres (Glass) and clear solid barium titanate spheres (Barium). The experimental characterization showed that the base and the glass tile have a comparable global reflectance (30% and 32% respectively). The barium tile has a higher global reflectance, equal to 39%. Furthermore, the directional characterization showed that both the glass and the barium tiles have very strong retro-reflective properties. Moreover, the colorimetric analysis showed that the appearance of the base tile is kept almost unchanged when glass spheres are applied on it. A more evident change is observed when barium spheres are considered. Finally, the numerical simulations showed that the optimized RR materials applied on building envelope can increase the radiation energy reflected outwards the urban canyon up to 5% with respect to base materials, thus reducing the energy trapped within the urban canopy and thus the UHI effect at different latitudes.
Keywords
Related Topics
Physical Sciences and Engineering
Energy
Renewable Energy, Sustainability and the Environment
Authors
Elena Morini, Beatrice Castellani, Elisabetta Anderini, Andrea Presciutti, Andrea Nicolini, Federico Rossi,