Researcher Focuses on Reducing Turbulence in Large Wind Farms
Posted by keelynet on January 20, 2009
The tradeoff will be the level between noise reduction vs power output.
“While harnessing more energy from the wind could help satisfy growing demands for electricity and reduce emissions of global-warming gases, turbulence from proposed wind farms could adversely affect the growth of crops in the surrounding countryside. By disrupting airflow to nearby turbines, turbulence can significantly reduce the efficiency of a wind farm. But turbulence produced by turbine rotors also can have a strong impact on local ground temperature and moisture content. “Turbulence creates stronger mixing of heat and moisture, which causes the land surface to become warmer and drier,” Baidya Roy said. “This change in local hydrometeorological conditions can affect the growth of crops within the wind farm.” Using models, Baidya Roy is simulating the effects of different turbine spacing and patterns, and different rotor designs, on turbulence. The simulations show that reducing rotor-generated turbulence not only reduces the hydrometeorological impacts, but also increases power production by harnessing energy that was otherwise lost to turbulence.” – Source
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