Vertical Axis Disk Wind Turbine

May 21, 2011 by  
Filed under Wind and Solar

How the turbine works: Rotatable shutters mounted on a circular disk automatically open when directed into the wind, irregardless of the wind’s direction. Pairs of upper and lower shutters are geared together. The lower shutter acts as a counterweight to the upper shutter. The bottom shutter opens in the downward direction and its weight helps to lift the upper shutter in the upward direction, as the wind applies an opening force against both shutters. When the shutters reach the vertical position, stops prevent them from opening further and the force of the wind is transferred from the open shutters to the circular disk. And the circular disk is attached to the vertical axis for power output. The circular disk, shutters, and outer vertical axis rotate together. The outer vertical axis is mounted via bearings over an inner vertical axis that is stationery. The shutters are blown closed by the wind (no stops in the opposite direction) as they reverse direction during their rotation and move into the wind on the opposite side of the wind turbine. When the wind is not blowing, the shutters open by gravity because the lower shutter is weighted to be slightly heavier than the upper shutter and it therefore can cause the upper shutter to open via the force of gravity as the two shutters are geared together. Wind blows against the open shutters and the open shutters with stops apply a force against the disk, but the open shutters with no stops (opposite side going into the wind

What is a Wind Turbine?

August 24, 2009 by  
Filed under Featured, Wind And Solar Energy

Dotted across landscapes throughout the world, one can now see small, stick-thin structures with three spokes poking out from the central column. These structures are alarming, and almost sinister, the first time you see them. The world now recognises them as wind turbines, and their presence in the modern world is becoming more apparent.

Wind turbines are man’s primary way of generating electricity using the power of the wind. The versions of wind turbines we see now are merely an extension of an old idea; using the wind for power is no new concept. What is new is using the wind to generate electricity.

In the past, farmers would use windmills – the forerunner to the wind turbine, which in design they closely resemble – to power machinery to grind corn. These windmills can still be seen around the world, with Holland a well known location for windmills. The white structures we see across fields today are simply the 21st century version.

Wind turbines usually have three spokes, which when caught by the wind cause the mechanism to revolve. The spokes spin around driven by the force of the wind, and this in turn is used to power a machine – just like the windmills of old. However, the machines these turbines now power do not grind crops, but rather generate electricity through a traditional generator.

Wind turbines are one of the most – if not the most – effective ways of generating electricity. The energy produces is clean and, more importantly, renewable. So while these turbines may still cause mild shock when viewed in a place one did not expect them, they are nevertheless the future.