Noise Emission of a 200 kW Vertical Axis Wind Turbine
AbstractThe 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. View Full-Text
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Möllerström, E.; Ottermo, F.; Hylander, J.; Bernhoff, H. Noise Emission of a 200 kW Vertical Axis Wind Turbine. Energies 2016, 9, 19.
Möllerström E, Ottermo F, Hylander J, Bernhoff H. Noise Emission of a 200 kW Vertical Axis Wind Turbine. Energies. 2016; 9(1):19.Chicago/Turabian Style
Möllerström, Erik; Ottermo, Fredric; Hylander, Jonny; Bernhoff, Hans. 2016. "Noise Emission of a 200 kW Vertical Axis Wind Turbine." Energies 9, no. 1: 19.
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