>
Fa   |   Ar   |   En
   Investigation of Low-Frequency Noise of Horizontal Axis Wind Turbines By A Hybrid Approach  
   
نویسنده Bozorgi A. R.
منبع Renewable Energy Research And Applications - 2021 - دوره : 2 - شماره : 2 - صفحه:185 -189
چکیده    Noise pollution is known as the biggest environmental problem of horizontal axis wind turbines. the main part of the noise is in the range of low-frequency noise (lfn) since wind turbines rotate slowly. several studies show that the lfn could have adverse effects on human health. in this study, the lfn generated by nrel vi wind turbine in wind speeds of 13 m/s is calculated by using a hybrid approach. in this approach, noise sources are defined on a data surface (ds), and then the noise propagating form the ds is calculated. the results show that a ds obtained by scaling the blade span with a size factor of 5 is appropriate for surrounding all main sources in this problem. it means, in addition to sources located on blade surface, a significant part of steady sources generating lfn is far from blades. on the other hand, the results show that tip vortices have no significant effect on the lfn.
کلیدواژه Noise Pollution ,Human Health ,Nrel Vi
آدرس Arak University Of Technology, Department Of Mechanical Engineering, Iran
پست الکترونیکی bozorgi@arakut.ac.ir
 
     
   
Authors
  
 
 

Copyright 2023
Islamic World Science Citation Center
All Rights Reserved