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Wind Engineering Module 7.3: Wind Turbine Noise. L. Sankar lsankar@ae.gatech.edu. Overview. When choosing a site, especially for small turbines, community acceptance of the project is important. Aesthetics Noise In this module, we review these issues using publicly available reports.
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Wind EngineeringModule 7.3: Wind Turbine Noise L. Sankar lsankar@ae.gatech.edu
Overview • When choosing a site, especially for small turbines, community acceptance of the project is important. • Aesthetics • Noise • In this module, we review these issues using publicly available reports. • http://cwec.ucdavis.edu/forum2004/proceedings/van%20Dam,%20J%20CWEC%20Forum%2014Dec2004.pdf • http://www.prism.gatech.edu/~ns2/AE4803/Wind.Turbine.Acoustics.by.Harvey.pdf • http://www.nrel.gov/docs/fy05osti/38157.pdf • http://www.nrel.gov/docs/fy05osti/34515.pdf
Summary • Noise is caused not just by the rotor, but by other components as well. • Rotor noise is below acceptable levels. • Noise increases as rotor radius increases. • Downwind rotors may generate more noise as they pass through the tower wake. • Trailing edge noise is a noticeable contributor. • Serrated trailing edges may help. • NREL has developed standard test procedures (See articles by Migliore).