Application of vacuum glass in passive low energy buildings

At present, some designers in the world have designed vacuum glass in various energy-saving buildings. For example, Dr. Werner Sobek, a professor at the University of Stuttgart in Germany and dean of the Institute of Architectural Structure Design, and the world-renowned architect, used vacuum glass from Xinliji in the active housing project. The project site is located in the center of the Weissenhof Siedlung complex completed in the 1920s in Stuttgart, a monumental “White House Settlement” architectural fair in the history of modern European architecture. Many famous European designers are involved in the architectural design of real estate in the area. They use new building materials and new construction methods to design living facilities for modern urban residents.

Werner Sobek raised nearly 3.9 million euros from the government’s research grants and sponsors to support the project. 100% recyclable energy-efficient houses generate electricity through photovoltaic panels, which not only provide electricity to the surrounding communities, but also power the grid. This energy model room is a 85 square meter unit townhouse, which uses 2.5×1.7m large composite vacuum glass and a shrinkable balcony fixed on the wooden front wall to achieve energy-saving effect. It is the most energy-efficient way.

Vacuum Laminated Glass online was also used in the “Water One” project of the Qinhuangdao passive low-energy residential demonstration project in Hebei and China. The project is a Sino-German bilateral cooperation. China’s Ministry of Housing and Construction and the German Energy Agency jointly implemented one of China’s first national-level technology projects, and is expected to become a new generation standard in China’s building energy efficiency.

The “Water One” project consists of four residential buildings designed and constructed in accordance with German passive low-energy building standards and is part of a comprehensive project with an overall scale of 1.5 million square meters under construction. The project building has 18 floors and 45 suites, each with a total area of ​​6,500 square meters. The energy-saving indicators of the building are higher than the current domestic energy-saving standards, such as the required door and window heat transfer coefficient K value is less than 1W / (m2 · K). The project uses a composite vacuum glass and a three-layer Low-E double hollow argon-filled structure in which the total solar transmittance and photothermal ratio of the glass can be adjusted by selecting different Low-E glasses.

As can be seen from the above introduction, the high-end glass products used in high-end energy-saving buildings mainly include vacuum glass and three-glass two-chamber insulating glass. The application of insulating glass products is relatively early, and the technology is relatively mature. The high-end products reduce the U value by selecting high-quality Low-E and increasing the number of Low-E layers, thickening the thickness of the hollow layer and filling argon gas, and the vacuum glass passes the basic Configuration can achieve a lower U value.

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