Assessment of the Noise generated by Wind Turbines at low Frequencies

[+] Author and Article Information
Martino Marini

DADU University of Sassari, Palazzo Pou Salit, 07041, Alghero (SS), Italy

Roberto Baccoli

DICAAR-University of Cagliari, Via Marengo 2, 09100 Cagliari, Italy

Costantino Carlo Mastino

DICAAR-University of Cagliari, Via Marengo 2, 09100 Cagliari, Italy

Antonino Di Bella

DII-University of Padova, Via Venezia 1, 35131 Padova Italy

Carlo Bernardini

G.F.T.A (Technical Physics Association ), via G. Zurita 13, 09125 Cagliari, Italy

Massimiliano Masullo

Università degli Studi della Campania Abbazia di San Lorenzo ad Septimum, via S. Lorenzo, 81031, Aversa (CE), Italy

1Corresponding author.

ASME doi:10.1115/1.4037088 History: Received October 03, 2016; Revised January 27, 2017


The present energy scenario has led to an acceleration in the development of renewable energy sources. Recent European standards, have raised the concern of defining a path to reach in 2050 a level of decarburization that is lower than 80% when compared to 1990. The current technological progress emphasizes wind power as an energy source which shows a special reliability. The technology to make full use of this source is based on large wind turbines, with a rated capacity of approximately 3 MW . Among the main environmental problems that need to be addressed in the planning of a new wind farm there is the noise. The noise generated by wind turbines has a broad spectrum character, a special interest in recent years has been directed to the low frequency noise. In several European countries special laws have been adopted to impose noise limits and evaluation methods for the assessment of environmental noise due to this type of sound sources. Other countries are now lacking specific rules about this problem but in the authorization procedure for wind farm planning such analysis is required by environmental control agencies. The purpose of this study consists of comparing the assessment procedures used in different European countries for the prediction of low frequency noise from wind turbines. After evaluating the results of the calculations, obtained by available computational tools and with the help of presented predictive models, the impact of low frequencies noise generated by wind turbines in the vicinity of sensitive receptors, is negligible.

Copyright (c) 2017 by ASME
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