Acoustic Tests of Small Wind Turbines

P. Migliore; J. Van Dam; A. Huskey

Acoustic Tests of Small Wind Turbines

P. Migliore, J. Van Dam, A. Huskey

National Wind Technology Center

National Renewable Energy Laboratory

Research output: Contribution to conference › Paper › peer-review

8 Scopus Citations

Abstract

Eight small wind turbines ranging from 400 watts to 100 kW in rated power were tested for acoustic emissions at the U.S. Department of Energy's National Renewable Energy Laboratory. Rigorous test procedures based on international standards were followed for measurements and data analyses. Results are presented in the form of sound pressure level versus wind speed, where the sound was recorded downwind of the turbine at a distance equal to the hub height plus half the rotor diameter. When there was sufficient separation between wind turbine noise and background noise, the apparent sound power level was calculated. In several cases, this was not possible. The implications of this problem are discussed briefly. Some of the configurations tested were specifically developed to reduce the noise level of their predecessors. Test data for these machines demonstrate marked progress toward quieter turbines.

Original language	American English
Pages	529-542
Number of pages	14
State	Published - 2004
Event	Collection of the 2004 ASME Wind Energy Symposium Technical Papers at the 42nd AIAA Aerospace Sciences Meeting and Exhibit - Reno, NV, United States Duration: 5 Jan 2004 → 8 Jan 2004

Conference

Conference	Collection of the 2004 ASME Wind Energy Symposium Technical Papers at the 42nd AIAA Aerospace Sciences Meeting and Exhibit
Country/Territory	United States
City	Reno, NV
Period	5/01/04 → 8/01/04

Bibliographical note

For preprint version including online full-text document, see NREL/CP-500-34662

NREL Publication Number

NREL/CP-500-36503

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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title = "Acoustic Tests of Small Wind Turbines",

abstract = "Eight small wind turbines ranging from 400 watts to 100 kW in rated power were tested for acoustic emissions at the U.S. Department of Energy's National Renewable Energy Laboratory. Rigorous test procedures based on international standards were followed for measurements and data analyses. Results are presented in the form of sound pressure level versus wind speed, where the sound was recorded downwind of the turbine at a distance equal to the hub height plus half the rotor diameter. When there was sufficient separation between wind turbine noise and background noise, the apparent sound power level was calculated. In several cases, this was not possible. The implications of this problem are discussed briefly. Some of the configurations tested were specifically developed to reduce the noise level of their predecessors. Test data for these machines demonstrate marked progress toward quieter turbines.",

author = "P. Migliore and {Van Dam}, J. and A. Huskey",

note = "For preprint version including online full-text document, see NREL/CP-500-34662; Collection of the 2004 ASME Wind Energy Symposium Technical Papers at the 42nd AIAA Aerospace Sciences Meeting and Exhibit ; Conference date: 05-01-2004 Through 08-01-2004",

year = "2004",

language = "American English",

pages = "529--542",

}

TY - CONF

T1 - Acoustic Tests of Small Wind Turbines

AU - Migliore, P.

AU - Van Dam, J.

AU - Huskey, A.

N1 - For preprint version including online full-text document, see NREL/CP-500-34662

PY - 2004

Y1 - 2004

N2 - Eight small wind turbines ranging from 400 watts to 100 kW in rated power were tested for acoustic emissions at the U.S. Department of Energy's National Renewable Energy Laboratory. Rigorous test procedures based on international standards were followed for measurements and data analyses. Results are presented in the form of sound pressure level versus wind speed, where the sound was recorded downwind of the turbine at a distance equal to the hub height plus half the rotor diameter. When there was sufficient separation between wind turbine noise and background noise, the apparent sound power level was calculated. In several cases, this was not possible. The implications of this problem are discussed briefly. Some of the configurations tested were specifically developed to reduce the noise level of their predecessors. Test data for these machines demonstrate marked progress toward quieter turbines.

AB - Eight small wind turbines ranging from 400 watts to 100 kW in rated power were tested for acoustic emissions at the U.S. Department of Energy's National Renewable Energy Laboratory. Rigorous test procedures based on international standards were followed for measurements and data analyses. Results are presented in the form of sound pressure level versus wind speed, where the sound was recorded downwind of the turbine at a distance equal to the hub height plus half the rotor diameter. When there was sufficient separation between wind turbine noise and background noise, the apparent sound power level was calculated. In several cases, this was not possible. The implications of this problem are discussed briefly. Some of the configurations tested were specifically developed to reduce the noise level of their predecessors. Test data for these machines demonstrate marked progress toward quieter turbines.

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M3 - Paper

AN - SCOPUS:3142661619

SP - 529

EP - 542

T2 - Collection of the 2004 ASME Wind Energy Symposium Technical Papers at the 42nd AIAA Aerospace Sciences Meeting and Exhibit

Y2 - 5 January 2004 through 8 January 2004

ER -

Acoustic Tests of Small Wind Turbines

Abstract

Conference

Bibliographical note

NREL Publication Number

UN SDGs

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Cite this