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ECN publicatie:
Titel:
Acoustic noise measurements on a wind turbine performed in the frame of theNIWT-Round Robin
 
Auteur(s):
Borg, N.J.C.M. van der; Vink, P.W.
 
Gepubliceerd door: Publicatie datum:
ECN 1996
 
ECN publicatienummer: Publicatie type:
ECN-C--96-086 ECN rapport
 
Aantal pagina's: Volledige tekst:
47  Niet beschikbaar.

Samenvatting:
A round robin acoustic measurement campaign has been performed by fiveproject partners using one and the same wind turbine (WT). The measurement procedure for the round robin exercise was agreed to be in compliance with the IEA-recommended practices on WT-noise emission measurements and the measured characteristics were agreed to be the apparent sound power level and the tonality, both measured at the reference measurement position. The measurements performed by ECN resulted in an A-weighted sound power level of the TACKE TW500/37 wind turbine in Hooksiel, Germany, of 95.8 dB(A) at a wind speed of 5.5 m/s at reference conditions. The tonality assessment of the sound pressure at 50 m down wind of the turbine resulted in a difference between the maximum tone level and the masking noise level of 2.4 dB. This characterizes the noise as 'prominent'. 2 refs.


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