Nanyang Technological University has developed smart windows that absorb sunlight.
Windows are a common building material in buildings. Recently, Nanyang Technological University in Singapore developed a special "smart window" that absorbs solar energy during the day and releases heat at night, thereby reducing the building's air conditioning energy consumption by 45%. The research team published the paper in the journal Joule.
According to reports, smart windows absorb sunlight during the day and release heat at night. The window consists of two pieces of ordinary glass with a solution consisting of a patented hydrogel, water and stabilizers.
During the day, the liquid will absorb and store the sun's heat energy, thereby reducing the amount of heat entering the room and reducing the need for air conditioning. Additionally, the liquid will become opaque when heated, reducing sunlight entering the room and further keeping the room cooler.
At night, the liquid cools and releases heat energy, some of which enters the room, which also reduces the need for air conditioning.
In addition, the smart window reduces outdoor noise by 15% compared to traditional double-glazed windows.
According to tests, this type of window can reduce air conditioning energy consumption in office buildings by 45%. Currently, Nanyang Technological University is looking for partners in the hope that the technology can be commercialized to achieve energy conservation and emission reduction.