Bright Future for Wind Power

Evolving Wind Power Technology is moving so fast, and the evolution in wind power is no exception.

Recently, Professor Prof. Yuji Ohya of the Kyushu University Research Institute for Applied Mechanics (RIAM) presented the latest in wind turbine technology. Called a Wind Lens, the system uses an inlet shroud, a diffuser and a brim, creating a lens. The research team claims that their improved system can triple the power output of a standard turbine.

A rim is placed around the blades, creating a low pressure behind the turbine. As the wind is sucked through the turbine, the effective wind speed increases. The wind is essentially focused through the lens, creating vortices that increase the velocity of the wind, which in turn increases the turbine speed. Almost like a magnifying glass focuses sunrays to a pinpoint, generating heat.

This is just one of the new twists on turbine technology.

WindTamer's foiled turbine. Source: Arista

WindTamer systems use foils around the blades, which create two vacuums, one ahead of the blades and one behind the turbine. The patented diffuser system uses both the push and pull of the wind. The wind pushes the blades to start rotating, like traditional turbines. The diffuser system augments the wind by using the two vacuums that pull the wind through the blades more quickly, thus turning the rotors faster and creating more power.

These foiled, or enclosed systems are much quieter than the traditional turbines, and much smaller. They also require less wind, due to the enhanced wind generating capabilities, which means they don’t need to be mounted as high as traditional wind turbines.

Because these systems look solid, birds and bats don’t fly into them, another plus for the shrouded turbines – and the bats and birds. The Federal Aviation Administration has approved WindTamers for use at airports.




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