WO3 nanopowder may be used to prepare a new type of environmentally-friendly transparent heat-insulating film and thus be used to obtain a transparent heat insulation glass. It is estimated that the global architectural glass market in 2025 is expected to have a compound annual growth rate of 7%. In the United States, Singapore, Australia and other developed countries, the penetration rate of heat insulation film of architectural glass is over 80%.
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Where more than 80% of buildings are high-energy buildings in China. So, energy conservation of building glass has also begun to be taken seriously. And the government is actively promoting energy conservation and emission reduction. According to estimates, a 16m2 indoor glass applying with thermal insulation film can save 0.24 kilowatt hours of electricity after 24 hours. Assume that a city's housing area is 120.81 million square meters, deducting 50% of the housing rate, living area is 60.4 million square meters, considering 50% of these houses using with heat insulation film, one day can save electricity: 0.24 × 200000 ÷16 = 447400 kWh. If current energy charge is 0.61 yuan/kWh, then one day can save electricity costs: 0.61 × 447400 = 270,000 yuan. In the long run, a lot of power can be saved. Therefore, the transparent heat insulation materials of nano tungsten trioxide particles will become more and more popular.
