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Noise Emission of a 200 kW Vertical Axis Wind Turbine

School of Business, Engineering and Science, Halmstad University, Halmstad SE-301 18, Sweden
Division for Electricity, Department of Engineering Sciences, Uppsala University, Uppsala SE-751 21, Sweden
Author to whom correspondence should be addressed.
Academic Editor: Frede Blaabjerg
Energies 2016, 9(1), 19;
Received: 31 October 2015 / Revised: 11 December 2015 / Accepted: 22 December 2015 / Published: 29 December 2015
(This article belongs to the Special Issue Wind Turbine 2015)
PDF [1255 KB, uploaded 29 December 2015]


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. View Full-Text
Keywords: vertical axis wind turbine (VAWT); H-rotor; noise; noise emission; sound power level vertical axis wind turbine (VAWT); H-rotor; noise; noise emission; sound power level

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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.

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