Measurements of underwater operational noise caused by offshore wind turbine off the southwest coast of Koreaopen access
- Authors
- Yoon, Young Geul; Han, Dong-Gyun; Choi, Jee Woong
- Issue Date
- Jul-2023
- Publisher
- Frontiers Media S.A.
- Keywords
- offshore wind turbine; underwater noise; operational noise; tower vibration; wind speed; rotor speed; acoustic characteristics
- Citation
- Frontiers in Marine Science, v.10, pp 1 - 11
- Pages
- 11
- Indexed
- SCIE
SCOPUS
- Journal Title
- Frontiers in Marine Science
- Volume
- 10
- Start Page
- 1
- End Page
- 11
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/115288
- DOI
- 10.3389/fmars.2023.1153843
- ISSN
- 2296-7745
2296-7745
- Abstract
- As interest in the development of renewable energy increases, a large number of offshore wind farms are being built worldwide. Accordingly, the potential impacts of underwater operational noise on marine ecosystems have become an issue, and thus it is necessary to understand the mechanisms and acoustic characteristics of underwater operational noise for the environmental impact assessment. For this paper, underwater noise was measured for about 10 days near a 3-MW wind turbine off the southwest coast of Korea, and the acoustic characteristics of the operational noise and its relationship with rotor speed were investigated. The tonal frequencies of the underwater operational noise varied with rotor speed, and particularly the peak level at a frequency of similar to 198 Hz increased by similar to 20 dB or more at the rated rotor speed. Additional experiments were conducted to determine the relationship between underwater noise and wind turbine tower vibration, and finally, the underwater noise correlated highly with the tower vibration acceleration signal, wind speed, and rotor speed, with correlation coefficients of 0.95 or higher.
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Collections - COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY > DEPARTMENT OF MARINE SCIENCE AND CONVERGENCE ENGINEERING > 1. Journal Articles
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