[China Glass Network] With the development of modern science and technology and glass technology and the improvement of people's living standards, the function of architectural glass is no longer just to meet the lighting requirements, but to have the ability to adjust light, heat insulation, safety (ballistic, Anti-theft, fire, radiation, anti-electromagnetic interference), art decoration and other characteristics.
1. Solar energy: including visible light, ultraviolet light and infrared light, with a wavelength range of 100 to 2400 nm. The absorption rate, reflectivity and penetration rate of solar energy are generally 100%.
2. Solar absorption rate: The percentage of solar energy absorbed by the glass/film composite layer. The absorbed solar energy is capable of radiating simultaneously to both sides of the glass/film composite layer, and the side with a high air flow rate will radiate more energy.
3. Solar reflectance: The percentage of solar energy reflected by the glass/film composite layer.
4, solar penetration rate: the percentage of solar energy through the glass / film composite layer.
5. Total Solar Reflectance: The sum of the portion of the solar energy that is reflected by the glass/film composite layer and the absorbed solar energy that radiates to the outside.
6. Total solar energy penetration: The sum of the solar energy transmitted through the portion of the glass/film composite layer and the absorbed solar energy radiated internally.
7. Insulation rate: The part of the heat generated by solar energy that is filtered by the glass/film composite layer. It is the sum of the reflected portion of the heat generated by solar energy and the portion that is absorbed and then radiated. The unit of heat insulation is the amount of heat per square foot per hour (BTU/Hr./Ft.2, where 1 BTU = 262 cards). The heat insulation rate of transparent glass is generally 20 BTU/Hr./Ft.2.
8, ultraviolet: make plastic, rubber and other products aging failure, and the object is seriously fading.
9. Infrared: The wavelength of infrared light is between 770 and 2400 nm. After being absorbed, the object will heat up. How much infrared light is filtered out is the determining factor of the heat insulation rate of the glass/film composite layer.
10, U value: every hour, inside and outside temperature difference every degree, through the amount of heat radiation per square foot.
11. Opacity factor: The total solar energy penetration of the glass/film composite layer relative to the glass.
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