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Article

Analysis of Sustainable Materials for Radiative Cooling Potential of Building Surfaces

Center for Energy, Environment and Economy (CEEE) and Department of Mechanical Engineering, Ozyegin University, 34794 Çekmekoy, Istanbul, Turkey
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Sustainability 2018, 10(9), 3049; https://doi.org/10.3390/su10093049
Received: 13 July 2018 / Revised: 9 August 2018 / Accepted: 10 August 2018 / Published: 28 August 2018
(This article belongs to the Special Issue Sustainability in Mediterranean Climate)
The main goal of this paper is to explore the radiative cooling and solar heating potential of several materials for the built environment, based on their spectrally-selective properties. A material for solar heating, should have high spectral emissivity/absorptivity in the solar radiation band (within the wavelength range of 0.2–2 μm), and low emissivity/absorptivity at longer wavelengths. Radiative cooling applications require high spectral emissivity/absorptivity, within the atmospheric window band (8–13 μm), and a low emissivity/absorptivity in other bands. UV-Vis spectrophotometer and FTIR spectroscopy, are used to measure, the spectral absorption/emission spectra of six different types of materials. To evaluate the radiative cooling potential of the samples, the power of cooling is calculated. Heat transfer through most materials is not just a surface phenomenon, but it also needs a volumetric analysis. Therefore, a coupled radiation and conduction heat transfer analysis is used. Results are discussed for the selection of the best materials, for different applications on building surfaces. View Full-Text
Keywords: spectrally-selective surfaces; radiative cooling; coupled radiation-conduction heat transfer; sustainable materials; roofs; built environment spectrally-selective surfaces; radiative cooling; coupled radiation-conduction heat transfer; sustainable materials; roofs; built environment
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MDPI and ACS Style

Family, R.; Mengüç, M.P. Analysis of Sustainable Materials for Radiative Cooling Potential of Building Surfaces. Sustainability 2018, 10, 3049. https://doi.org/10.3390/su10093049

AMA Style

Family R, Mengüç MP. Analysis of Sustainable Materials for Radiative Cooling Potential of Building Surfaces. Sustainability. 2018; 10(9):3049. https://doi.org/10.3390/su10093049

Chicago/Turabian Style

Family, Roxana, and M. Pinar Mengüç. 2018. "Analysis of Sustainable Materials for Radiative Cooling Potential of Building Surfaces" Sustainability 10, no. 9: 3049. https://doi.org/10.3390/su10093049

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