Acoustic Array Development for Wind Turbine Noise Characterization [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.531 Applied physics
• Thông tin xuất bản: Golden, Colo. : Oak Ridge, Tenn. : National Renewable Energy Laboratory (U.S.) ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2013
• Mô tả vật lý: Size: 28 pp. : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 258842
• Chủ đề: 1. 17 wind energy; 2. Acoustic array; 3. Array system design; 4. Nrel; 5. Wind-turbine noise characterization

Tóm tắt

This report discusses the design and use of a multi-arm, logarithmic spiral acoustic array by the National Renewable Energy Laboratory (NREL) for measurement and characterization of wind turbine-generated noise. The array was developed in collaboration with a team from the University of Colorado Boulder. This design process is a continuation of the elliptical array design work done by Simley. A description of the array system design process is presented, including array shape design, mechanical design, design of electronics and the data acquisition system, and development of post-processing software. System testing and calibration methods are detailed. Results from the initial data acquisition campaign are offered and discussed. Issues faced during this initial deployment of the array are presented and potential remedies discussed.