Researchers at the Chinese Academy of sciences have developed a new wearable electric generator that can collect energy from the wind as people walk. The team said it was low-cost and efficient enough to power small sensors and LEDs. Although it works with the wind, it’s not exactly a turbine. Instead, the generator collects energy through a mechanism similar to electrostatic generation. < / P > < p > in this case, the active ingredient is the two plastic strips in the tube. As air flows through the tube, the bars fan and beat together to capture and store energy. The team said the Nanogenerator could operate in moderate wind speeds of 3.6 mph (5.8 km / h), and tests showed it could work on an arm while walking. That is to say, it works best in winds of 8.9 to 17.9 mph (14.3 to 28.8 kph), so maybe it’s more suitable for cycling. < / P > < p > the team said the wind energy conversion efficiency of the device was 3.23%. That’s higher than other devices that extract energy from the wind, but it’s far less than a more dedicated wind energy collector. For example, while Apple cannot be compared, an ordinary old wind turbine is about 50% efficient. As a result, the new nanogenerators will be more suitable for small devices. The optimized version can output 175 V voltage, 43 μ a current and 2.5 MW power, which is enough to power small temperature sensors or 100 LED arrays. < / P > < p > this new design could one day provide information for new wearable nanogenerators and power small electronic devices. Other concepts include fabrics that collect energy from friction, and other fabrics that use sunlight and motion at the same time, and metal plates that collect energy from curved fingers. Eventually, the team plans to try to scale up the technology to generate more electricity, perhaps even grid scale – although there is still a lot of work to do before this stage. < / P > < p > “I want to scale the device to 1000 watts, so it’s competitive with traditional wind turbines,” said Yang Ya, senior author of the study. “We can put these devices in places that traditional wind turbines can’t reach. We can put it on top of mountains or buildings to achieve sustainable energy. ” Spontaneous combustion at a Guangzhou Motor vehicle intersection and other traffic lights in Shenzhen