Cool products for building envelope – Part I: Development and lab scale testing

Autor: Ioanna Fasaki, Gian Marco Revel, Maria Taxiarchou, A. Gozalbo, Luis Guaita Delgado, Anna Gaki, Ioannis M Arabatzis, Miguel Ángel Bengochea, M.J. Orts, Marco Emiliani, Asimina Katsiapi, Milena Martarelli, Sacha Hermanns
Rok vydání: 2014
Předmět:
cool roof
Cool roofs
Buildings and Infrastructure
Reflection
02 engineering and technology
cool ceramics
Cool roof
cool paint
Ceramic materials
0202 electrical engineering
electronic engineering
information engineering
Nanotechnology
General Materials Science
Built Environment
Process engineering
Materials
Roof
TS - Technical Sciences
nanotechnology
Cool paint
urban heat island
Computer simulation
021001 nanoscience & nanotechnology
Reflectivity
Roofs
Solar reflectance
Manufacturing process
Reflective surfaces
0210 nano-technology
Infrared devices
Materials science
020209 energy
Durability property
Urban heat island
Lab scale
Ceramic membranes
solar reflectance
Market requirements
Optics
SR - Structural Reliability
Thermal
Spectral reflectance measurements
Near-infrared range
Building Engineering & Civil Engineering
Renewable Energy
Sustainability and the Environment
business.industry
Durability
Cool ceramics
Building materials
New product development
business
Building envelope
Zdroj: Solar Energy, 105, 770-779
ISSN: 0038-092X
Popis: The paper describes the methodology followed for the development of new cool products in order to widen the range of existing solutions both including coloured (even dark) materials and extending the application also to building vertical components. Cool coloured ceramic tiles and acrylic paints for façades and roof membranes have been developed and tested at lab scale. Spectral reflectance measurements have been performed demonstrating a significant improvement of reflectance in the Near InfraRed (NIR) range (up to. +0.40) while keeping dark colour and high absorbance in the visible. The development of new products has been also oriented to the improvement of durability properties, being this aspect of relevance for high reflecting materials that have to keep their cooling properties over the time. While ceramic tiles naturally offer superior resistance to outdoor ageing, a significant increase of biological growth resistance has been achieved also for roof membranes by including ZnO nanoparticles. The approach followed by the authors aimed at delivering products, that besides having higher NIR reflectance, were capable of satisfying industrial and market requirements being compatible with standard manufacturing processes and offering additional functionalities. A complementary paper will be dedicated to the extensive experimental and numerical evaluation of new materials' thermal performances. © 2014 Elsevier Ltd.
Databáze: OpenAIRE
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