glass curtain wall design in cold area

Energy is an important material basis for the survival and development of human society, which is related to the normal operation and development of society. China is currently in the peak period of urban construction, which promotes the rapid development of the construction industry, which also causes a large amount of energy consumption of custom curtain wall . The average heating energy consumption per unit area of buildings in northern cities and towns is about 3 times that of buildings in northern Europe at the same latitude. Moreover, there are few energy-saving buildings in China, and there is a lack of awareness of building energy conservation. More than 95% of the existing buildings built belong to high-energy buildings. There are problems such as poor thermal insulation performance of envelope structure and poor thermal efficiency of heating system, so building energy conservation is imperative.

Nowadays, more and more urban buildings are using glass curtain wall as the outer protection structure, which brings transparent and bright visual effect and beautiful facade, but also brings high energy consumption, light pollution and poor insulation and other problems. In particular, glass, as a transparent material, has a strong thermal conductivity, and its energy consumption accounts for a large proportion of the total energy consumption of the building. Therefore, designing more energy-saving glass curtain wall is an important way to solve the problem of high energy consumption of the envelope structure. Cold regions in China mainly refer to Northeast China, Inner Mongolia and parts of the west. Because the heat loss caused by the temperature difference between indoor and outdoor heat transfer in the heating period is dominant in this kind of area, the requirement of winter heat preservation must be met, and the heat protection in summer is generally not considered. The thermal performance of building envelope has a direct impact on the indoor environment and building energy consumption. In order to achieve the energy saving goal of reducing building heating energy consumption by 65%, all building designs of aluminium curtain wall must be implemented according to this standard, and the actual operation and maintenance period should also meet this energy consumption requirement.

In modern buildings, large-area lighting glass is widely used, but the heat transfer coefficient of architectural glass is much higher than that of brick structure walls. In winter, indoor heat stars are transmitted to the outdoor through heat conduction, convection and radiation on the glass, which leads to the increase of heat loss of the building. The lighting glass is the main part of the heat loss. The energy saving of office glass curtain is mainly through the thermal performance, the number of glass layers, insulating layer of insulating glass and other factors to achieve insulation of hot and cold air heat conduction or convection. At present, insulating glass has been used in production and life to control the energy transfer process of heat radiation, heat conduction and heat convection, which has a certain effect of energy saving and heat preservation.
Glass curtain wall, curtain wall construction, curtain wall market.