Researchers at City University of Hong Kong (CityUHK) have developed a next-generation radiative cooling technology that has the potential to provide energy-free cooling materials to combat global warming. This groundbreaking research could offer a sustainable solution to help reduce carbon emissions and mitigate the impacts of climate change.
The new radiative cooling technology utilizes a material with a high solar reflectance and high thermal emittance, allowing it to effectively reject heat from the sun while simultaneously emitting thermal radiation into the atmosphere. This process can, in turn, lower the temperature of the material below ambient air temperature without the need for electricity or other energy sources. This innovative approach to cooling could have significant implications for reducing energy consumption in buildings and other structures.
The researchers at CityUHK have conducted extensive experiments to demonstrate the effectiveness of their radiative cooling technology. They have shown that the material can cool surfaces by up to 10 degrees Celsius below ambient temperature during the day and up to 17 degrees Celsius below ambient temperature at night. This remarkable cooling ability could potentially be used in a wide range of applications, including air conditioning systems, refrigeration units, and even clothing.
The development of this next-generation radiative cooling technology represents a major step forward in the fight against global warming. By providing energy-efficient cooling materials, CityUHK researchers are helping to address one of the key challenges of climate change. As the world continues to strive for sustainability and environmental protection, innovative solutions like this will be essential in creating a more sustainable future for generations to come.
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