Solar Radiative Penthouse Coating

Preparation and performance study of hydrophobic radiative cooling ...

The radiative cooling performance of the coating is predominantly determined by its spectral characteristics across the solar and infrared bands. The reflectance and emissivity of the coatings at varying PVDF-HFP matrix concentrations were determined using an ultraviolet-vision-near-infrared spectrometer (0.3-2.5 μm) and a Fourier transform ...

Such details provide a deeper understanding and appreciation for Solar Radiative Penthouse Coating.

The BCEC coating achieves solar reflectance of 97.0% and sub-ambient daytime radiative cooling of up to 9 °C under a solar intensity of 800 W m−2.

Such details provide a deeper understanding and appreciation for Solar Radiative Penthouse Coating.

Key Details About Solar Radiative Penthouse Coating

Such details provide a deeper understanding and appreciation for Solar Radiative Penthouse Coating.

Achieving sub-ambient temperature is significant, and has been accomplished by engineering a coating that combines high solar reflectance with high infrared emittance in the sky transparency window. Self-Cooling Paint radiates heat away, rather than absorbing it or merely reflecting sunlight as white paints can.

The coatings are engineered to reflect most solar radiation (wavelengths from 0.3-2.5 μm) while emitting heat through the "atmospheric window" (8-13 μm), a range of wavelengths that allows heat to escape Earth's atmosphere efficiently.

Passive daytime radiative cooling (PDRC) is an energy-saving technology without an additional energy supply or environmental pollution. At present, most PDRC coatings for buildings are only aiming at high solar reflectivity (RS) and high mid-infrared emissivity (EMIR) while ignoring practicalities such as adhesion strength, scalability, and durability. In this work, modified calcined kaolin ...