Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Acoustic ranging technique with application to assessment of low-frequency acoustic noise of wind turbines

Conference ·
OSTI ID:5790916
Impulsive low-frequency noise from wind turbines can cause annoyance particularly when a residential structure is involved. Such noise is typically generated in some spatially restricted region of a turbine rotor swept area. Low-frequency impulsive noise of the MOD-1 turbine was generated when the rotor blades passed downwind of the tower legs encountering the complex unsteady flows there. An acoustic ranging technique that aids assessment of the degree of concentration of acoustic generation within the turbine swept area and which determines the time-average spatial source region of such concentration is described. Practical applications and limitations of the process are discussed.
Research Organization:
Solar Energy Research Inst., Golden, CO (USA)
DOE Contract Number:
AC02-77CH00178
OSTI ID:
5790916
Report Number(s):
SERI/TP-215-1954; CONF-830432-3; ON: DE83009406
Country of Publication:
United States
Language:
English