Noise Emission of a 200 kW Vertical Axis Wind Turbine

The noise emission from a vertical axis wind turbine (VAWT) has been investigated. A noise measurement campaign on a 200 kW straight-bladed VAWT has been conducted, and the result has been compared to a semi-empirical model for turbulent-boundary-layer trailing edge (TBL-TE) noise. The noise emission from the wind turbine was measured, at wind speed 8 m/s, 10 m above ground, to 96.2 dBA. At this wind speed, the turbine was stalling as it was run at a tip speed lower than optimal due to constructional constraints. The noise emission at a wind speed of 6 m/s, 10 m above ground was measured while operating at optimum tip speed and was found to be 94.1 dBA. A comparison with similar size horizontal axis wind turbines (HAWTs) indicates a noise emission at the absolute bottom of the range. Furthermore, it is clear from the analysis that the turbulent-boundary-layer trailing-edge noise, as modeled here, is much lower than the measured levels, which suggests that other mechanisms are likely to be important, such as inflow turbulence.

[1]  Thomas F. Brooks,et al.  Airfoil self-noise and prediction , 1989 .

[2]  Hans Bernhoff,et al.  Electric Control Substituting Pitch Control for Large Wind Turbines , 2013 .

[3]  I. Paraschivoiu.  Wind turbine design with emphasis on Darrieus concept [ressource électronique] / Ion Paraschivoiu , 2002 .

[4]  Hans Bernhoff,et al.  Tip speed ratio control of a 200 kW VAWT with synchronous generator and variable DC voltage , 2013 .

[5]  R. Bowdler and G. Leventhall.  Wind Turbine Noise , 2012 .

[6]  Fernando Porté-Agel,et al.  Large Eddy Simulation of Vertical Axis Wind Turbine Wakes , 2014 .

[7]  Anders Goude,et al.  Simulating Dynamic Stall Effects for Vertical Axis Wind Turbines Applying a Double Multiple Streamtube Model , 2015 .

[8]  Hester Bijl,et al.  Simulating dynamic stall in a two‐dimensional vertical‐axis wind turbine: verification and validation with particle image velocimetry data , 2010 .

[9]  Antonio Posa,et al.  Experimental and Computational Wake Characterization of a Vertical Axis Wind Turbine , 2014 .

[10]  Hans Bernhoff,et al.  Eigen Frequencies of a Vertical Axis Wind Turbine Tower Made of Laminated Wood and the Effect upon Attaching Guy Wires , 2014 .

[11]  Hans Bernhoff,et al.  An upper size of vertical axis wind turbines , 2014 .

[12]  Chao Li,et al.  2.5D large eddy simulation of vertical axis wind turbine in consideration of high angle of attack flow , 2013 .

[13]  Charlie Pearson,et al.  Vertical axis wind turbine acoustics , 2014 .

[14]  Hans Bernhoff,et al.  Turbulence influence on wind energy extraction for a medium size vertical axis wind turbine , 2016 .

[15]  C. Hanning,et al.  Wind turbine noise , 2012, BMJ : British Medical Journal.

[16]  Pieter Sijtsma,et al.  Nationaal Lucht-en Ruimtevaartlaboratorium National Aerospace Laboratory NLR NLR-TP-2007-798 Location and quantification of noise sources on a wind turbine , 2008 .

[17]  K. Persson Waye,et al.  Wind turbine noise, annoyance and self-reported health and well-being in different living environments , 2007, Occupational and Environmental Medicine.

[18]  Takahiro Kiwata,et al.  Experimental and numerical investigation of a three-dimensional vertical-axis wind turbine with variable-pitch , 2015 .

[19]  Alexandru Dumitrache,et al.  LOW-FREQUENCY NOISE PREDICTION OF VERTICAL AXIS WIND TURBINES , 2010 .

[20]  Mats Leijon,et al.  Evaluation of different turbine concepts for wind power , 2008 .

[21]  Karl Bolin.  Wind Turbine Noise and Natural Sounds : Masking, Propagation and Modeling , 2009 .