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Title: Acoustic Array Development for Wind Turbine Noise Characterization

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.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
1111205
Report Number(s):
NREL/TP-5000-60457
DOE Contract Number:
AC36-08GO28308
Resource Type:
Technical Report
Research Org:
National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy Wind and Water Power Technologies Office
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY ACOUSTIC ARRAY; ARRAY SYSTEM DESIGN; WIND-TURBINE NOISE CHARACTERIZATION; NREL; Wind Energy