Impact of low‐level wind maxima below hub height on wind turbine sound propagation
Abstract An analysis of the effect of low‐level wind maxima (LLWM) below hub height on sound propagating from wind turbines has been performed at a site in northern Sweden. The stably stratified boundary layer, which is typical for cold climates, commonly features LLWM. The simplified concept for th...
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crwiley:10.1002/we.2517 2024-03-31T07:54:34+00:00 Impact of low‐level wind maxima below hub height on wind turbine sound propagation Conrady, Kristina Bolin, Karl Sjöblom, Anna Rutgersson, Anna Energimyndigheten 2020 http://dx.doi.org/10.1002/we.2517 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fwe.2517 https://onlinelibrary.wiley.com/doi/pdf/10.1002/we.2517 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/we.2517 en eng Wiley http://creativecommons.org/licenses/by-nc-nd/4.0/ Wind Energy volume 23, issue 8, page 1767-1775 ISSN 1095-4244 1099-1824 Renewable Energy, Sustainability and the Environment journal-article 2020 crwiley https://doi.org/10.1002/we.2517 2024-03-04T13:01:01Z Abstract An analysis of the effect of low‐level wind maxima (LLWM) below hub height on sound propagating from wind turbines has been performed at a site in northern Sweden. The stably stratified boundary layer, which is typical for cold climates, commonly features LLWM. The simplified concept for the effects of refraction, based on the logarithmic wind profile or other approaches where the wind speed is continuously increasing with height, is often not applicable there. Long‐term meteorological measurements in the vicinity of a wind farm were therefore used to identify LLWM. Sound measurements were conducted simultaneously to the meteorological measurements. LLWM below hub height decrease the sound level close to the surface downwind of the wind farm. This effect increases with increasing strength of the LLWM. The occurrence of LLWM as well as strength and height of the LLWM are dependent on the wind direction. Article in Journal/Newspaper Northern Sweden Wiley Online Library Wind Energy 23 8 1767 1775 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Renewable Energy, Sustainability and the Environment |
spellingShingle |
Renewable Energy, Sustainability and the Environment Conrady, Kristina Bolin, Karl Sjöblom, Anna Rutgersson, Anna Impact of low‐level wind maxima below hub height on wind turbine sound propagation |
topic_facet |
Renewable Energy, Sustainability and the Environment |
description |
Abstract An analysis of the effect of low‐level wind maxima (LLWM) below hub height on sound propagating from wind turbines has been performed at a site in northern Sweden. The stably stratified boundary layer, which is typical for cold climates, commonly features LLWM. The simplified concept for the effects of refraction, based on the logarithmic wind profile or other approaches where the wind speed is continuously increasing with height, is often not applicable there. Long‐term meteorological measurements in the vicinity of a wind farm were therefore used to identify LLWM. Sound measurements were conducted simultaneously to the meteorological measurements. LLWM below hub height decrease the sound level close to the surface downwind of the wind farm. This effect increases with increasing strength of the LLWM. The occurrence of LLWM as well as strength and height of the LLWM are dependent on the wind direction. |
author2 |
Energimyndigheten |
format |
Article in Journal/Newspaper |
author |
Conrady, Kristina Bolin, Karl Sjöblom, Anna Rutgersson, Anna |
author_facet |
Conrady, Kristina Bolin, Karl Sjöblom, Anna Rutgersson, Anna |
author_sort |
Conrady, Kristina |
title |
Impact of low‐level wind maxima below hub height on wind turbine sound propagation |
title_short |
Impact of low‐level wind maxima below hub height on wind turbine sound propagation |
title_full |
Impact of low‐level wind maxima below hub height on wind turbine sound propagation |
title_fullStr |
Impact of low‐level wind maxima below hub height on wind turbine sound propagation |
title_full_unstemmed |
Impact of low‐level wind maxima below hub height on wind turbine sound propagation |
title_sort |
impact of low‐level wind maxima below hub height on wind turbine sound propagation |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/we.2517 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fwe.2517 https://onlinelibrary.wiley.com/doi/pdf/10.1002/we.2517 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/we.2517 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Wind Energy volume 23, issue 8, page 1767-1775 ISSN 1095-4244 1099-1824 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1002/we.2517 |
container_title |
Wind Energy |
container_volume |
23 |
container_issue |
8 |
container_start_page |
1767 |
op_container_end_page |
1775 |
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1795035525694881792 |