Terminology of the hottest glass film

2022-10-19
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Glass film terminology

1. Solar energy: including visible light, ultraviolet and infrared, with a wavelength range of 100 ~ 2400 nm. The penetration, reflectance and absorption of solar energy generally add up to 100%

2. Solar penetration: the percentage of solar energy passing through the glass/film composite layer

3. Solar reflectivity: the percentage of solar energy reflected by the glass/film composite layer

4. Solar energy absorption rate: the percentage of solar energy absorbed by glass/film composite layer. The absorbed protective Yang energy of customized products can radiate to both sides of the glass/film composite layer at the same time, and the side with high air flow speed will radiate more energy

5. Total solar penetration: the sum of the part of solar energy passing through the glass/film composite layer and the absorbed solar energy radiating internally

6. Total solar reflectivity: the sum of the part of solar energy reflected by the glass/film composite layer and the absorbed solar energy radiated to the outside

7. Heat insulation rate: the part of the heat generated by solar energy filtered by the glass/film composite layer. It is the sum of the reflected part of the heat generated by solar energy and the part that is absorbed and then radiated out. The measurement unit of heat insulation rate is the heat passing per square foot per hour (btu/hr./ft. 2, where 1btu=262 calories). The heat insulation rate of transparent glass is generally 20 btu/h, in fact R/Ft。 2。

8 the thickness of the arbitration sample is 3mm, infrared: the wavelength of infrared is between 770 ~ 2400 nm, which will make the object heat after being absorbed. How much infrared ray is filtered is the decisive factor of the heat insulation rate of the glass/film composite layer

9. Ultraviolet ray: aging and invalidation of plastic, rubber and other products, and serious discoloration of carpets, furniture, curtains and so on

10. Shielding coefficient: the total solar penetration rate of glass/film composite layer relative to glass

11. U value: the amount of heat radiation passing through 3 per square foot per hour and per degree of internal and external temperature difference

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