On November 8th, the Massachusetts Institute of Technology (MIT) developed a thermal insulation film that can be attached to the window, which can block 70% of the sun's heat, thereby reducing the room temperature, can replace the ordinary air conditioner, and reduce 10% Of electricity. In one test, engineers added a heat-insulating solution between two sheets of 12 x 12 inches (about 30.48 x 30.48 cm) of glass and developed a window with a film coating. They shine light on the windows to simulate the sunlight coming in. At high temperatures, the film turns off-white and reflects 70% of the heat. Because this polymer material is thermochromic, it temporarily changes color as the temperature rises. The team claimed that if every exterior window of the building is covered with this heat-reflecting film, the cost of indoor air-conditioning may be reduced by 10%. It is estimated that in the United States, air-conditioning power consumption accounts for about 6% of the total electricity consumption, and the annual electricity bill is about 29 billion US dollars (about 2014.67 billion yuan), and this number will gradually increase with global warming. When exposed to temperatures of 32 ° C (89 ° F) or higher, the heat reflective film shrinks and becomes opaque. Below 32 ° C, the film is completely transparent and does not reflect heat. It is hoped that this material can be produced for use by families and businesses in the summer. Nicholas Fang, a professor at the Massachusetts Institute of Technology, said: "Because the smart windows currently on the market either cannot effectively block the heat from the sun or are very power-hungry. So we think that some low-cost and energy-efficient optical materials and coatings may promote The development of smart windows. " Led Integrated Emergency Device Led Lamp Automatic Emergency Device,Led Automatic Emergency Device,Led Emergency Device,Led Light Emergency Device,Emergency Driver For Led Lights Foshan Nai An Lighting Electric Co.,ltd , https://www.fsnaipsled.com
