New window system reduces noise level by 26 decibels and improves ventilation by 4 times
Researchers have developed an acoustically safe ventilation window system that significantly reduces external noise levels and improves room ventilation..
Street noise has long been a problem in densely populated cities. The best way to avoid it today is in an air-conditioned enclosed space. However, a design team from the National University of Singapore has proposed a new solution to this issue..
They presented a window system 1.8×0.88×0.15 m, consisting of two layers of glass panels with a thickness of 6 mm at a distance of 8.5 cm from each other, and two vents arranged in a checkerboard pattern. Additionally, sound absorbers are installed on the sides between the glasses.
Tests have shown that this design reduces the level of incoming noise by 26 dB, which is perceived by a person as about a fivefold decrease in its volume. In this case, natural ventilation is possible through open openings.
Air exchange can be improved with a mechanical ventilation system, making it 4 times more efficient than a conventional window unit. Optionally, you can install a filter that blocks dust particles or air pollutants.
This system not only provides physical and emotional well-being, but also reduces air conditioning costs..
As a reminder, researchers at another university in Singapore recently also developed a window unit that suppresses ambient noise even when the sash is open..
text: Ilya Bauer, photo: National University of Singapore