Vortex Bladeless is a technology that uses the effect of vorticity. Basically, Vortex Bladeless consists of a conical cylinder fixed vertically with an elastic rod. The cylinder oscillates in the wind, which then generates electricity through a lineal alternator’s system.

The outer conical cylinder is designed to be substantially rigid and has the ability to vibrate, remaining anchored to the bottom rod. The top of the cylinder is unconstrained and has the maximum amplitude of the oscillation. The structure is built using resins reinforced with carbon and/or glass fiber, materials used in conventional wind turbine blades.

The inner cylindrical rod, which may penetrate into the mast for 10% – 20% of it’s length (depending on the size of the mast), is anchored to it at its top and secured to the ground at its bottom part. It is built with carbon fiber, which provides the highest resistance to the fatigue and has the greater mechanical quality factor, allowing its elasticity to absorb the vibrations generated by the cylinder.

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Field © Vortex Blades/David Ra David

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Prototype Drone © Vortex Bladeless

Vortex goes further to maximize the output from a given wind by modify the rigidity. The top of the rod has a magnetic confinement system with permanent magnets that increase the apparent stiffness of the system according to their degree of flexion.

This system allows to maximize the oscillation amplitudes: when wind intensifies, the magnetic force of repulsion goes up, which reduces the distance between the rod and the magnet. As a result, the oscillation and the potential of generated energy increases to the maximum. With that, Vortex can automatically vary rigidity and “synchronize ” with the incoming wind speed, in order to stay in resonance without any mechanical or manual interference.

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Vortex Prototype Home © Vortex Bladeless

The Vortex aims to be a “greener ” wind alternative. The impact on the bird population is expected to be much smaller, because Vortex doesn’t require the same type or magnitude of movement as the traditional wind turbine, allowing for higher visibility.

With the oscillation frequency of the equipment below 20Hz ,the impact sound level is nonexistent, opening the possibility to make the future wind farms completely silent .

A complete life-cycle analysis (LCA) will need to be carried out to estimated full environmental impacts, by it is plausible to assume that the results will show a smaller ecological footprint, since cuts on built materials would lead to material and operational savings throughout the lifecycle.

Vortex Bladeless

Vortex Bladeless

R&D company founded in 2013 and exclusively dedicated to the development and marketing of devices able to capture the wind kinetic energy by vortex shedding, transforming it into other useful forms of energy.

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