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New nanogenerator collects energy from car wheels while driving
Cars are one of the most revolutionary creations of mankind. As with any technology, there is always room for improvement.
A group of engineers from the University of Wisconsin-Madison and their collaborators from China have developed a nanogenerator that harvests energy from the friction of car tires.
Armed with a special nanogenerator and Jeep toy model, the researchers have demonstrated how this energy can be harvested and converted into electricity, an improvement that could provide improved fuel efficiency in full-size cars of the future.
The principle of operation of the nanogenerator is based on the triboelectric effect, which collects energy from the changing electrical potential between the road surface and the wheels of the car. The triboelectric effect is an electrical charge that results from contact or friction between two dissimilar objects.
According to Xudong Wang, an assistant professor of materials science and engineering at the University of Wisconsin, friction created when tires come into contact with the ground during driving accounts for about 10 percent of vehicle fuel use.
For him and graduate student Yanchao Mao, this was a big opportunity to improve efficiency, so they spent the last year developing a device that would help solve this problem.
Their device uses an electrical charge that is created when certain materials come into contact with each other.
During preliminary tests, Wang and his colleagues used a toy car with LED headlights to demonstrate the concept. They attached an electrode to the wheels of the car, and as it moved on the ground, the LED headlights lit up. The movement of electrons caused by friction was enough to generate the right amount of energy to power the light source, which supports the idea of lost friction energy during movement, which can actually be collected and reused.
“No matter how much energy is wasted, we can get it back, and that makes things more efficient,” Wang says. “I think that’s the most exciting part of the process, and that’s what I’m always looking for: how to conserve energy from consumption.”
The researchers also found that the amount of energy collected is directly related to the weight of the car and its speed. Therefore, the amount of energy stored can vary depending on the vehicle – according to the scientist, it is about 10% with an average fuel consumption.
P.S. And remember, just by changing your consciousness – together we change the world!
Source: www.ekopower.ru/? p=3595
A group of engineers from the University of Wisconsin-Madison and their collaborators from China have developed a nanogenerator that harvests energy from the friction of car tires.
Armed with a special nanogenerator and Jeep toy model, the researchers have demonstrated how this energy can be harvested and converted into electricity, an improvement that could provide improved fuel efficiency in full-size cars of the future.
The principle of operation of the nanogenerator is based on the triboelectric effect, which collects energy from the changing electrical potential between the road surface and the wheels of the car. The triboelectric effect is an electrical charge that results from contact or friction between two dissimilar objects.
According to Xudong Wang, an assistant professor of materials science and engineering at the University of Wisconsin, friction created when tires come into contact with the ground during driving accounts for about 10 percent of vehicle fuel use.
For him and graduate student Yanchao Mao, this was a big opportunity to improve efficiency, so they spent the last year developing a device that would help solve this problem.
Their device uses an electrical charge that is created when certain materials come into contact with each other.
During preliminary tests, Wang and his colleagues used a toy car with LED headlights to demonstrate the concept. They attached an electrode to the wheels of the car, and as it moved on the ground, the LED headlights lit up. The movement of electrons caused by friction was enough to generate the right amount of energy to power the light source, which supports the idea of lost friction energy during movement, which can actually be collected and reused.
“No matter how much energy is wasted, we can get it back, and that makes things more efficient,” Wang says. “I think that’s the most exciting part of the process, and that’s what I’m always looking for: how to conserve energy from consumption.”
The researchers also found that the amount of energy collected is directly related to the weight of the car and its speed. Therefore, the amount of energy stored can vary depending on the vehicle – according to the scientist, it is about 10% with an average fuel consumption.
P.S. And remember, just by changing your consciousness – together we change the world!
Source: www.ekopower.ru/? p=3595
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