Innovative Smart Windows Could Reduce 80 Million Tons of CO2 Emissions Annually

German scientists have developed an innovative window system that autonomously adapts to weather conditions without consuming electricity. The Solar Gate technology, created by researchers from the Universities of Stuttgart and Freiburg, is based on the structural characteristics of pine cones. As is well known, pine cones close in humid weather to protect their seeds and open in dry and warm conditions.

 

How does it work?

The system consists of 3D-printed elements made from a special blend of plant-based cellulose and recycled plastic. The structure has three layers that swell under the influence of moisture, leading to automatic deformation of the component. In winter, when the air is cold and humid, the elements open, allowing sunlight to penetrate and naturally heat the building. In summer, when the weather is dry and hot, the elements close, blocking the sun's burning rays and providing coolness.

 

After extensive testing, the system was installed at the University of Freiburg's livMatS Biomimetic Shell research center. "We have created a system that responds autonomously to the weather. No electricity or complex mechanical parts are needed. The material structure itself is the machine," noted Achim Menges, head of the Institute for Computational Design and Construction at the University of Stuttgart.

 

This technology could have a positive impact on the environment. According to data from the International Energy Agency (IEA), buildings consume approximately 40% of global energy, a significant portion of which is spent on heating and air conditioning. Such automated systems can reduce unwanted solar heat penetration by 90% and cut approximately 80 million tons of CO2 emissions annually.

 
See the source.