Electricity generated from gravity

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Posted December 2, 2013
Electricity generated from gravity
Mexican entrepreneurs developed a system capable of using the vehicular flow to generate electric energy. This development has the potentiality to produce sufficient electricity to power up a household through a device that “catches” the force of the moving cars.

“This is a technology that provides sustainable energy and could be implemented at low prices, since it’s a complement of already existing infrastructure: the concrete of streets and avenues”, Héctor Ricardo Macías Hernández, developer of the system, said. He added that at a global level there are no records of similar projects, with exception of an English patent, but with the difference that in the European country piezoelectric floors are used, which are too expensive for developing countries.

The technology consists in a system that integrates a ramp-step (elaborated with polymeric material similar to the ones used in the manufacture of tires) that elevates to five centimeters above the level of the street. When receiving the impact of the vehicle, this ramp exerts pressure over a bellows.

This artifact contains air that is expelled at a certain pressure through a hose; later, this element travels to a tank where it is compressed and relaunched to an electricity generating turbine. Macías Hernández also said that the accumulation of electric energy is proportional to the flow of cars over a determinate spot; however, in places with low vehicular flow, several ramp-steps could be placed to multiply the impact of every individual vehicle.

Read more at: Phys.org

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