Article

Modelling ILFN Generated by Wind Turbines (en)

Authors

* Presenting author
Day / Time: 20.03.2024, 15:20-16:00
Room: Glasgang, Posterbereich C
Typ: Poster
Session: Windenergie (Posterbereich C)
Information: Die Poster werden durchgängig von Dienstag bis Donnerstag im Glasgang ausgestellt, sortiert nach thematischen Zusammenhängen in der hier angegebenen Posterinsel (siehe Sitzungstitel). Das Posterforum zur angegebenen Zeit bietet die Möglichkeit, mit den Autor*innen in Diskussion zu kommen.
Abstract: Wind turbines are a source of infrasound and low frequency noise (ILFN). These sounds are a source of nuisance for those living near wind farms. Therefore, ILFN propagation should be modelled at the stage of forecasting the acoustic impact of wind turbines on the environment. Therefore, this paper analyses the suitability of the ISO 9613-2, CNOSSOS-EU and Nord2000 sound propagation models for predicting ILFN generated by wind turbines. Analyses were carried out for octave frequency bands ranging from 4 Hz to 250 Hz. The results of the calculations were compared with measurements taken at one wind farm in Poland. The analyses carried out showed that the most accurate forecast results are obtained using the Nord2000 method, but gathering the required data, primarily meteorological, to be introduced into the model can be problematic. With the ISO 9613-2 method, collecting the required meteorological data does not cause major problems, but the forecast results are less accurate than with the Nord2000 method.The research leading to these results has received funding from the Norway Grants 2014-2021 through the National Centre for Research and Development (project No. NOR/POLNOR/Hetman/0073/2019-00) and by the Polish Ministry of Science and Higher Education - project No. 16.16.130.942.