The energy consumption of the building's doors and windows has been compared figuratively: the energy consumption of each non-energy-saving window is equivalent to the energy consumption of a long-changing lamp with several tens of watts over the years. In this era of increasing energy-saving and energy-reducing requirements, heat loss of external door and window glass is a major part of building energy consumption. Therefore, the use of new glass that can effectively reduce energy consumption can greatly reduce the consumption of heating and cooling. Fuel, thereby reducing carbon emissions.
Coated glass
Low-E glass, also known as low-emissivity coated glass, is a series of films that are coated with multiple layers of metal or other compounds on the glass surface. The coating layer has the characteristics of high visible light transmission and high reflection to mid- far infrared light, and it has excellent heat insulation effect and good light transmittance as compared with common glass and traditional architectural coated glass. The emissivity of ordinary float glass is as high as 0.84. When coated with a silver-based low-emission film, the emissivity can be reduced to 0.15 or less. The use of Low-E glass for building doors and windows in buildings can greatly reduce the transmission of indoor thermal energy to the outside and achieve an ideal energy-saving effect.
Low-E glass has a high transmittance to visible light in the sunlight, which can reach more than 80%, and the reflectance is very low, which makes its optical performance greatly improved compared with the traditional coated glass, and can create a A softer, more comfortable light environment.
Vacuum glass
Vacuum glass is a new type of product. It is partitioned by appropriately distributed particle supports. The gap layer is only 0.1 to 0.2 mm. Vacuum is used in the cavity to produce no gas, and the degree of vacuum is 0.1 Pa or more. As a new generation of energy-saving glass, it has better insulation, thermal insulation performance, its insulation performance is about 4 times that of ordinary glass; due to the high thermal resistance of vacuum glass, it has better anti-condensation, frosting performance, so It is extremely beneficial for the winter lighting in the cold area.
Smart glass
In order to solve the different requirements for glass insulation performance in different climatic regions and different seasons, the United States began to study smart glass. This smart glass that uses the principle of electrochromism has been put into production after long-term experimental research, which allows glass to enter The smart age.
Electrochromic glass is a new type of functional glass. This device, consisting of a base glass and an electrochromic system, utilizes the tunability of the electrochromic material for the transmission (or absorption) properties caused by the electric field. The purpose of adjusting the illuminance by human desire can be achieved, and at the same time, the electrochromic system can reduce the amount of heat that the building must spend in summer to keep cool and keep warm in winter by selectively absorbing or reflecting external heat radiation and preventing internal heat diffusion. energy.
Doors, windows, and glass doors
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