No Access Submitted: 05 July 2010 Accepted: 20 December 2010 Published Online: 14 June 2011
The Journal of the Acoustical Society of America 129, 3727 (2011); https://doi.org/10.1121/1.3543957
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As wind turbines get larger, worries have emerged that the turbine noise would move down in frequency and that the low-frequency noise would cause annoyance for the neighbors. The noise emission from 48 wind turbines with nominal electric power up to 3.6 MW is analyzed and discussed. The relative amount of low-frequency noise is higher for large turbines (2.3–3.6 MW) than for small turbines (≤ 2 MW), and the difference is statistically significant. The difference can also be expressed as a downward shift of the spectrum of approximately one-third of an octave. A further shift of similar size is suggested for future turbines in the 10-MW range. Due to the air absorption, the higher low-frequency content becomes even more pronounced, when sound pressure levels in relevant neighbor distances are considered. Even when A-weighted levels are considered, a substantial part of the noise is at low frequencies, and for several of the investigated large turbines, the one-third-octave band with the highest level is at or below 250 Hz. It is thus beyond any doubt that the low-frequency part of the spectrum plays an important role in the noise at the neighbors.
The measurements were carried out by Delta. Financial support was obtained from the Energy Research Programme under the Danish Energy Agency, and from Aalborg University.
  1. 1. H. Møller and C. S. Pedersen, “Human hearing at low frequencies,” Noise Health 6 (23), 37–57 (2004). Google Scholar
  2. 2. L. D. Whittle, S. J. Collins, and D. W. Robinson, “The audibility of low frequency sounds,” J. Sound Vib. 21 (4), 431–448 (1972). https://doi.org/10.1016/0022-460X(72)90828-0 , Google ScholarCrossref
  3. 3. H. Møller and J. Andresen, “Loudness of pure tones at low and infrasonic frequencies,” J. Low Freq. Noise Vib. 3 (2), 78–87 (1984). Google ScholarCrossref
  4. 4. M. A. Bellmann, V. Mellert, C. Reckhardt, and H. Remmers, “Perception of sound and vibration at low frequencies,” collected papers from the Joint Meeting “Berlin 99” of ASA, EAA and DAGA, Berlin, Germany (1999), Abstract in J. Acoust. Soc. Am., 105, 1297. Google ScholarAbstract
  5. 5. ISO 226 Acoustics—Normal Equal-Loudness-Level Contours (International Organization for Standardization, Geneva, Switzerland, 2003). Google Scholar
  6. 6. J. Andresen and H. Møller, “Equal annoyance contours for infrasonic frequencies,” J. Low Freq. Noise Vib. 3 (3), 1–9 (1984). Google Scholar
  7. 7. H. Møller, “Annoyance of audible infrasound,” J. Low Freq. Noise Vib. 6 (1), 1–17 (1987). Google ScholarCrossref
  8. 8. Y. Inukai, N. Nakamura, and H. Taya, “Unpleasantness and acceptable limits of low frequency sound,” J. Low Freq. Noise, Vib., Act. Control, 19 (3), 135–140 (2000). https://doi.org/10.1260/0263092001492895 , Google ScholarCrossref
  9. 9. J. K. Subedi, H. Yamaguchi, Y. Matsumoto, and M. Ishiharatil, “Annoyance of low frequency tones and objective evaluation methods,” J. Low Freq. Noise, Vib., Act. Control. 24 (2), 81–96 (2005). https://doi.org/10.1260/0263092054531000 , Google ScholarCrossref
  10. 10. K. P. Waye, J. Bengtsson, A. Kjellberg, and S. Benton, “Low frequency noise ‘pollution’ interferes with performance,” Noise Health. 4 (13), 33–49 (2001). Google Scholar
  11. 11. K. P. Waye, A. Clow, S. Edwards, F. Hucklebridge, and R. Rylander, “Effects of nighttime low frequency noise on the cortisol response to awakening and subjective sleep quality,” Life Sci. 72, 863–875 (2003). https://doi.org/10.1016/S0024-3205(02)02336-6 , Google ScholarCrossref
  12. 12. B. Berglund and T. Lindvall (Eds.) “Community noise,” Archives of the center for Sensory Research, 2 (1), Stockholm University and Karolinska Institute, 1995, prepared for the World Health Organization. Google Scholar
  13. 13. ISO 7196, Acoustics—Frequency-Weighting Characteristic for Infrasound Measurements (International Organization for Standardization, Geneva, Switzerland, 1996). Google Scholar
  14. 14. N. S. Yeowart and M. J. Evans, “Thresholds of audibility for very low-frequency pure tones,” J. Acoust. Soc. Am. 55 (4), 814–818 (1974). https://doi.org/10.1121/1.1914605 , Google ScholarScitation
  15. 15. S. Yamada, T. Kosaka, K. Bunya, and T. Amemiya, “Hearing of low frequency sound and influence on human body,” in Proceedings of Conference on Low Frequency Noise and Hearing, Aalborg, Denmark (May 7–9, 1980) , pp. 95–102. Google Scholar
  16. 16. U. Landström, R. Lundström, and M. Byström, “Exposure to infrasound—Perception and changes in wakefulness,” J. Low Freq. Noise Vib. 2 (1), 1–11 (1983). Google Scholar
  17. 17. T. Watanabe and H. Møller, “Low frequency hearing thresholds in pressure field and in free field,” J. Low Freq. Noise Vib. 9 (3), 106–115 (1990). Google ScholarCrossref
  18. 18. Lavfrekvent støj, infralyd og vibrationer i eksternt miljø (Low Frequency Noise, Infrasound and Vibrations in the External Environment), Orientering fra Miljøstyrelsen, nr. 9 (Danish Environmental Protection Agency, 1997). Google Scholar
  19. 19. H. H. Hubbard and K. P. Shepherd, “Aeroacoustics of large wind turbines,” J. Acoust. Soc. Am. 89 (6), 2495–2508 (1991). https://doi.org/10.1121/1.401021 , Google ScholarScitation
  20. 20. K. P. Shepherd and H. H. Hubbard, “Physical characteristics and perception of low frequency noise from wind turbines,” Noise Control Eng. J. 36 (1), 5–15 (1991). https://doi.org/10.3397/1.2827777 , Google ScholarCrossref
  21. 21. G. Guidati, R. Bareiß, and S. Wagner, “An investigation of blade-tower-interaction noise (BTI) for horizontal axis wind turbines in upwind and downwind configuration. First steps towards modeling of aeroelastic effects,” in Proceedings of the 8th IEA Joint Action Symposium on Aerodynamics of Wind Turbines, Lyngby, Denmark (1994), pp. 249–255. Google Scholar
  22. 22. M. L. Legerton, D. M. J. P. Manley, J. W. Sargent, D. J. Snow, and P. Styles, “Low frequency noise & vibration levels at a modern wind farm,” in Proceedings of the 25th International Congress on Noise Control Engineering, Inter-Noise 96, Liverpool, Turkey, pp. 459–462. Google Scholar
  23. 23. K. Betke, M. Schultz-von Glahn, O. Goos, and H. Remmers, “Messung der Infraschallabstrahlung von Windkraftanlagen” (Measurement infrasound emission from wind turbines), in Proceeding of DEWEK ’96. 3rd German Wind Power Conference Wilhelmshaven, Germany (1996), pp. 207–210. Google Scholar
  24. 24. K. Betke and H. Remmers, “Messung und Bewertung von Tieffrequentem Schall,” (Measurement and assessment of low-frequency sound), Fortschr. Akustik, DAGA 1998, pp. 472–473 . Google Scholar
  25. 25. J. Jakobsen, “Infrasound emission from wind turbines,” J. Low Freq. Noise, Vib., Act. Control 24 (3), pp. 145–155 (2005). https://doi.org/10.1260/026309205775374451 , Google ScholarCrossref
  26. 26. J. Jakobsen, “Danish guidelines on environmental low frequency noise, infrasound and vibration,” J. Low Freq. Noise, Vib., Act. Control 20 (3), 141–148 (2001). https://doi.org/10.1260/0263092011493091 , Google ScholarCrossref
  27. 27. G. P. van den Berg, “Do wind turbines produce significant low frequency sound levels,” 11th Int. Meeting on Low. Frequency Noise Vib. its Control., Maastricht, The Netherlands (2004). Google Scholar
  28. 28. ISO 398-7, Acoustics—Reference Zero for the Calibration of Audiometric Equipment—Part 7: Reference Threshold of Hearing under Free-Field and Diffuse Field Listening Conditions (International Organization for Standardization, Geneva, 2005). Google Scholar
  29. 29. C. S. Pedersen and H. Møller, Vurdering af lavfrekvent støj og infralyd fra decentrale el-elproducerende anlæg (Assessment of Low-Frequency Noise and Infrasound from Local Electricity-Producing Plants) (Department of Acoustics, Aalborg University, Aalborg, Denmark, 2005). Google Scholar
  30. 30.The measurement of low frequency noise at three UK wind farms,’ Hayes McKenzie Partnership, Ltd., for Department Trade Industri (DTI), Contract No. W/45/00656/00/00, URN No. 06/1412, UK, 2006. Google Scholar
  31. 31. A. Moorhouse, D. Waddington, and M. Adams, “Proposed criteria for the assessment of low frequency noise disturbance,” Project Rep. DEFRA NANR45, University of Salford, 2005. Google Scholar
  32. 32. A. Moorhouse, D. Waddington, and M. Adams, “Procedure for the assessment of low frequency noise complaints,” Project Rep. DEFRA NANR45, University of Salford, 2005. Google Scholar
  33. 33. J. Jakobsen, Lavfrekvent støj fra vindmøller (Low-Frequency Noise from Wind Turbines), Memorandum (Danish Environmental Protection Agency (Miljøstyrelsen), May 31, 2006). Google Scholar
  34. 34. Bekendtgørelse om miljøgodkendelse af hurtigfærgeruter(Statutory Order on High-Speed Ferries), Bekendtgørelse No. 821(Danish Ministry of the Environment, København, 1997). Google Scholar
  35. 35. Vurdering af lavfrekvent støj fra færger, part 2: Revideret metode til beregning af lydtrykniveauet indendørs (Assessment of Low-Frequency Noise from Ferries, Part 2: Revised Method for Calculating the Sound Pressure Level Indoors), Delta Akustik & Vibration, Arbejdsrapport fra Miljøstyrelsen nr. 10, 1997. Google Scholar
  36. 36. S. Lee, S.-H. Shin, C. Cheong, S.-S. Jung, and W. Cheung, “Low-frequency noise emission characterisation of upwind-type large wind turbines,” in Proceedings of the International Congress on Noise Control Engineering, Inter-Noise 2007, Istanbul, Turkey. Google Scholar
  37. 37. S. S. Jung, W.-S. Cheung, C. Cheong, and S.-H. Shin, “Experimental identification of acoustic emission characteristics of large wind turbines with emphasis on infrasound and low-frequency noise,” J. Korean Phys. Soc. 53 (4), 1897–1905 (2008). Google ScholarCrossref
  38. 38. W. J. Gastmeier and B. Howe, “Recent studies of infrasound from industrial sources,” Can. Acoust. 36 (3), 58–59 (2008). Google Scholar
  39. 39. R. Ramakrishnan, “Characteristics of wind turbine noise,” Can. Acoust. 3, 122–123 (2009). Google Scholar
  40. 40. J. P. Harrison, “Inadequacy of wind turbine noise regulations and their application,” Can. Acoust. 37 (3), 156–157 (2009). Google Scholar
  41. 41. R. J. Barthelmie, L. Folkerts, F. T. Ormel, P. Sanderhoff, P. J. Eecen, O. Stobbe, N. M. Nielsen, “Offshore wind turbine wakes measured by sodar,” J. Atmos. Ocean.ic Technol. 20, 466–477 2003. https://doi.org/10.1175/1520-0426(2003)20<466:OWTWMB>2.0.CO;2 , Google ScholarCrossref
  42. 42. B. Søndergaard and C. Ryom, “Low frequency noise from large wind turbines—Sound power measurement method,” Rep. AV 135/08, Delta, April 2008. Google Scholar
  43. 43. B. Søndergaard and K. D. Madsen, “Low frequency noise from large wind turbines—Results from sound power measurements,” Rep. AV 136/08, Delta, revised version December 2008. Google Scholar
  44. 44. B. Søndergaard and K. D. Madsen, “Low frequency noise from large wind turbines—Results from previous sound power measurements,” Rep. AV 137/08, Delta, May 2008. Google Scholar
  45. 45. D. Hoffmeyer and B. Søndergaard, “Low frequency noise from large wind turbines—Measurements of sound insulation of facades,” Rep. AV 1097/08, Delta, 2008. Google Scholar
  46. 46. IEC 61400-11 Wind Turbine Generator Systems—Part 11: Acoustic Noise Measurement Techniques, 2nd ed. (International Technical Commission, Geneva, 2002 plus Amendment 1 2006). Google Scholar
  47. 47. ISO 9613-2 Acoustics—Attenuation of Sound during Propagation Outdoors—Part 2: General Method of Calculation (International Organization for Standardization, Geneva, 1996). Google Scholar
  48. 48. ISO 9613-1, Acoustics—Attenuation of Sound during Propagation Outdoors—Part 1: Calculation of the Absorption of Sound by the Atmosphere (International Organization for Standardization, Geneva, 1993). Google Scholar
  49. 49. Bekendtgørelse om støj fra vindmøller (Statutory Order on Noise from Wind Turbines), Bekendtgørelse nr. 1518 af 14, december 2006 (Danish Ministry of the Environment, 2006). Google Scholar
  50. 50. ISO 140-5, Acoustics—Measurement of Sound Insulation in Buildings and of Building Elements—Part 5: Field Measurements of Airborne Sound Insulation of Facade Elements and Facades (International Organization for Standardization, Geneva, 1998). Google Scholar
  51. 51. J. Jakobsen, “Lavfrekvent støj, infralyd og vibrationer; Rumakustiske forhold ved lave frekvenser” (Low-frequency noise, infrasound vibrations; Room Acoust. conditions At. Low. frequencies), Rep. AV67/96, Delta Akustik & Vib., 1996. Google Scholar
  52. 52. C. Simmons, “Measurement of sound pressure levels at low frequencies in rooms. Comparison of available methods and standards with respect to microphone positions,” Acta. Acust. 85 (1), 88–100 (1999). Google Scholar
  53. 53. S. Pedersen, H. Møller, and K. P. Waye, “Indoor measurements of noise at low frequencies—Problems and solutions,” J. Low Freq. Noise, Vib., Act. Control 26 (4), 249–270 (2007). https://doi.org/10.1260/026309207783571389 , Google ScholarCrossref
  54. 54. J. Brunskog and F. Jacobsen, “Measurements of low-frequency noise in rooms,” Memorandum (Danish Environmental Protection Agency, 2008). Google Scholar
  55. 55. S. Wagner, R. Bareiß, and G. Guidati, Wind Turbine Noise (Springer, Berlin, Germany). Google Scholar
  56. 56. ISO 1996-2Acoustics—Description, Measurement and Assessment of Environmental Noise—Part 2: Determination of Environmental Noise Levels, 2nd ed. (International Organization for Standardization, Geneva, 2007). Google Scholar
  57. 57. Måling af ekstern støj fra virksomheder (Measurement of External Industrial Noise), Vejledning nr. 6 (Danish Environmental Protection Agency, 1984). Google Scholar
  58. 58. S. Oerlemans and G. Schepers, “Prediction of wind turbine noise and comparison to experiment,” in Proceedings of Second International Meeting on Wind Turbine Noise, Lyon, France (2007). Google Scholar
  59. 59. S. Oerlemans, M. Fisher, and T. Maeder, “Reduction of wind turbine noise using optimized airfoils and trailing-edge serrations,” AIAA. J. 47 (6), 1470–1481 (2009). https://doi.org/10.2514/1.38888 , Google ScholarCrossref
  60. 60. E. Pedersen and K. P. Waye, “Perception and annoyance due to wind turbine noise—A dose-response relationship,” J. Acoust. Soc. Am. 116 (6), 3460–3470 (2004). https://doi.org/10.1121/1.1815091 , Google ScholarScitation
  61. 61. E. Pedersen, F. van den Berg, R. Bakker, and J. Bouma, “Response to noise from modern wind frams in The Netherlands,” J. Acoust. Soc. Am. 126 (2), 634–643 (2009). https://doi.org/10.1121/1.3160293 , Google ScholarScitation
  62. 62. T. H. Pedersen and K. S. Nielsen, “Genevirkning af støj fra vindmøller,” (Annoyance noise from wind turbines), Report 150, Delta Akustik & Vib., 1996. Google Scholar
  63. 63. Buller från vindkraft—Riktvärden för ljud från vindkraft (Noise from Wind Turbines—Recommended Limits For Sound From Wind Turbines), Naturvårdsverket (Stockholm, 2009). Google Scholar
  64. 64. Ekstern støj fra virksomheder (External Ind. Noise), Vejledning nr. 5 (Danish Environmental Protection Agency, 1984). Google Scholar
  65. 65. B. Berglund, T. Lindvall, and D. H. Schwela (eds.), Guidelines for Community Noise (World Health Organization, Geneva, Switzerland, 1999). Google Scholar
  66. 66.Høring af udkast til bekendtgørelse om støj fra vindmøller” (Hearing of draft statutory order on noise from wind turbines), Miljøstyrelsen, 30. October2006. Google Scholar
  67. 67. IEC TS 61400-14, Wind turbines—Part 14: Declaration of Apparent Sound Power Level and Tonality Values (International Technical Commission, Geneva, 2005). Google Scholar
  68. 68. S. Broneske, “Comparison of wind turbine manufacturers’ noise data for use in wind farm assessments,” in Proceedings of Third International Meeting on Wind Turbine Noise, Aalborg, Denmark (2009). Google Scholar
  69. 69. F. van den Berg, E. Pedersen, J.e Bouma, and R. Bakker, “WINDFARMperception—Visual and acoustic impact of wind turbine farms on residents,” Final Rep. 3., University of Groningen, University of Gothenburg, June 2008. Google Scholar
  70. 70. B. Søndergaard and K. D. Madsen, “Low frequency noise from large wind turbines—Summary and conclusions on measurements and methods,” Rep. AV 140/08, Delta (revised version December 2008. Google Scholar
  71. 71.Ljud från vindkraftverk” (Sound from wind turbines), Rapport 6241, Naturvårdsverket, Stockholm, Sweden, 2001. Google Scholar
  72. 72. Night Noise Guidelines for Europe (World Health Organization, Copenhagen, Denmark, 2009). Google Scholar
  73. 73. W. E. Zorumski and W. L. Willshire, “Downwind sound propagation in an atmospheric boundary layer,” AIAA. J. 5, 515–523 (1989). https://doi.org/10.2514/3.10141 , Google ScholarCrossref
  74. 74. L. Johansson, “Sound propagation around off-shore wind turbines,” in Proceedings of 10th International Congress on Sound and Vibration, Stockholm, Sweden (2003), pp. 1481–1487. Google Scholar
  75. 75. K. Bolin, M. Boué and I. Karasalo, “Long range sound propagation over a sea surface,” J. Acoust. Soc. Am. 126 (5), 2191–2197 (2009). https://doi.org/10.1121/1.3238236 , Google ScholarScitation
  76. 76. G. P. van den Berg, “Wind gradient statistics up to 200 m altitude over flat ground,” in Proceedings of First International Meeting on Wind Turbine Noise, Berlin, Germany (2005). Google Scholar
  77. 77. P. Botha, “The use of 10 m wind speed measurements in the assessment of wind farm developments,” in Proceedings of First International Meeting on Wind Turbine Noise, Berlin, Germany (2005). Google Scholar
  78. 78. W. K. G. Palmer, “Uncloaking the nature of wind turbines—Using the science of meteoroly,” in Proceedings of Second International Meeting on Wind Turbine Noise, Lyon, France (2007). Google Scholar
  79. 79. D. Bowdler, “Wind shear and its effect on noise assessment,” in Proceedings of Third International Meeting on Wind Turbine Noise, Aalborg, Denmark (2009). Google Scholar
  80. 80. G. P. van den Berg, “Effects of the wind profile at night on wind turbine sound,” J. Sound Vib. 277, 955–970 (2004). https://doi.org/10.1016/j.jsv.2003.09.050 , Google ScholarCrossref
  81. 81. G. P. van den Berg, “The beat is getting stronger: The effect of atmospheric stability on low frequency modulated sound of wind turbines,” J. Low Freq. Noise, Vib., Act. Control 24 (1), 1–24 (2005). https://doi.org/10.1260/0263092054037702 , Google ScholarCrossref
  82. 82. W. K. G. Palmer, “A new explanation for wind turbine whoosh—wind shear,” in Proceedings of Third International Meeting on Wind Turbine Noise, Aalborg, Denmark (2009). Google Scholar
  83. 83. M. Almgren, S. Schönfeld, and J. Grönlund, “Sound emission and sound propagation for wind turbines in forest terrains,” in Proceedings of Third International Meeting on Wind Turbine Noise, Aalborg, Denmark (2009). Google Scholar
  84. 84. B. Søndergaard, “The next version of the IEC 61400-11 measurement method,” in Proceedings of Third International Meeting on Wind Turbine Noise, Aalborg, Denmark (2009). Google Scholar
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