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What can we do about the noise pollution? Last time I was around a windmill the bigger one made an annoying woosh-whop noise and the small ones an annoying high
by spockz 7y ago
What can we do about the noise pollution? Last time I was around a windmill the bigger one made an annoying woosh-whop noise and the small ones an annoying high pitched noise. Fixing the noise will help getting them accepted in more urban areas.
- lr 7y agoThis generator is one of the top-of-the-line small generators out today: https://www.energyonthehook.com/Eclectic-Energy-D400-Wind-Generator-p/ecld400.htm https://www.energyonthehook.com/Eclectic-Energy-D400-Wind-Ge... It is very pleasant to listen to (I know, because the huge yacht next to my little boat has one).
- itcrowd 7y agoThe noise mainly comes from the tip of the rotor blade [1]. Reducing the noise from these tips is an active research topic and some progress is established [2]. However, it seems difficult to maintain high efficiency when attempting to reduce the noise levels. In any case, scientists and engineers are trying to tackle it! [1] "Noise Pollution Prevention in Wind Turbines: Status and Recent Advances", https://www.mdpi.com/2071-1050/4/6/1104 https://www.mdpi.com/2071-1050/4/6/1104 [2] "Reduction of Wind Turbine Noise Using Optimized Airfoils and Trailing-Edge Serrations", https://arc.aiaa.org/doi/abs/10.2514/1.38888 https://arc.aiaa.org/doi/abs/10.2514/1.38888