Acoustic Tests of Small Wind Turbines

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

Research output: Contribution to conferencePaperpeer-review

9 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 languageAmerican English
Pages529-542
Number of pages14
StatePublished - 2004
EventCollection 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 20048 Jan 2004

Conference

ConferenceCollection of the 2004 ASME Wind Energy Symposium Technical Papers at the 42nd AIAA Aerospace Sciences Meeting and Exhibit
Country/TerritoryUnited States
CityReno, NV
Period5/01/048/01/04

Bibliographical note

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

NREL Publication Number

  • NREL/CP-500-36503

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