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Everyone knows hydropower, wind power, thermal power, nuclear power, but have you heard of steam power? On October 16, at the Zhongguancun Forum International Frontier Science and Technology Achievements Exhibition, the research team of Tsinghua University brought a demonstration of water and steam power generation projects.
The steam power plant on site. Photography / Beijing News reporter Pu Feng
The reporter saw at the scene that several balls like lanterns, with some wires extended, are supplying power to mobile phones and calculators.
"This project was originally created by our team. The idea was first proposed in 2014. It can generate electricity through the spontaneous absorption of water vapor in the air through special materials. The electricity it generates is more environmentally friendly and can work 24 hours a day, no matter day or night. It can still work even if it rains on a sunny day. "Huang Yaxin, a doctoral student in the Department of Mechanical Engineering at Tsinghua University, said that this type of power generation device has a wide range of applications and high energy output. A single 0.5x0.5 square centimeter device can generate a voltage of 1.5V .
The power generated by the three devices used in the demonstration is sufficient to charge the mobile phone. The more devices, the more power generated.
"Water vapor is the source of energy for power generation devices. Water vapor is everywhere, and the device can be made very large. For example, at home can be covered with the entire wall, the power generation is very impressive." Huang Yaxin said, the efficiency of power generation is also related to the air humidity, In the southern region, the application effect will be better, because the water vapor content in the air is greater.
He said that the main features of this power generation device are green and environmentally friendly, small size and high output. Unlike traditional hard batteries, it can be made into a flexible device that can be carried around and used as an emergency power supply in the field. In addition, in some extreme environments, many power supplies are ineffective, and this device can still effectively supply power. The ocean is a good application scenario, because the humidity in the sea is very high, and it can effectively supply power. (Reporter Li Yukun)
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