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Source: Prof Mark Diesendorf (UNSW) a Submission to Senate Public Inquiry on the Social and economic Impact of Rural Wind Farms
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Vertical axis wind turbinesWith a vertical axis wind turbine, the main motor shaft runs vertically instead of horizontally which means the generators and gearboxes are placed near the ground where it is more convenient for servicing. One advantage of the vertical axis turbine is that the wind can come from any direction. They could be mounted with the axis horizontal by would need to pointed across the wind. They operate at lower speeds than the normal propeller style so are quieter and can be used in residential areas. They don't tend to be used at the height of the standard turbines so do not receive the faster winds McCamley turbine. A cage of fins direct the wind onto a centrl rotor. Video Prof Diesendorf (UNSW) has produced a Submission to Senate Public Inquiry on the Social and economic Impact of Rural Wind Farms This is an excellent list of the advantages of wind power and answers to various objections.
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Wind spire |