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The effect of turbulence on noise emissions from a micro-scale horizontal axis wind turbine

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  • Rogers, T.
  • Omer, S.

Abstract

Building mounted micro wind turbines are capable of contributing a significant proportion to a building’s energy needs in the right circumstances. However the introduction of this technology in built-up areas has been limited due to a number of issues such as low wind speeds, high turbulence and noise issues. This paper presents the results of an investigation carried out to assess the effect of turbulence on the noise emissions from a micro-scale horizontal axis wind turbine (HAWT). Two experiments were devised in order to investigate the noise emissions from a Micro Wind Turbine (MWT) mounted on one of the University of Nottingham’s renewable energy monitoring platform. The first experiment measured the one-third octave sound levels to quantify the sound spectrum for the MWT. The second experiment assessed the effects of turbulence on the noise emissions from the same MWT. This paper describes in detail both of these methodologies. Results found that a doubling of the turbulence intensity from 0.3 to 0.6 resulted in an almost doubling of the sound energy level.

Suggested Citation

  • Rogers, T. & Omer, S., 2012. "The effect of turbulence on noise emissions from a micro-scale horizontal axis wind turbine," Renewable Energy, Elsevier, vol. 41(C), pages 180-184.
    • Handle: RePEc:eee:renene:v:41:y:2012:i:c:p:180-184
    DOI: 10.1016/j.renene.2011.10.017
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    Cited by:

    1. Su, Jie & Lei, Hang & Zhou, Dai & Han, Zhaolong & Bao, Yan & Zhu, Hongbo & Zhou, Lei, 2019. "Aerodynamic noise assessment for a vertical axis wind turbine using Improved Delayed Detached Eddy Simulation," Renewable Energy, Elsevier, vol. 141(C), pages 559-569.
    2. Anicic, Obrad & Petković, Dalibor & Cvetkovic, Slavica, 2016. "Evaluation of wind turbine noise by soft computing methodologies: A comparative study," Renewable and Sustainable Energy Reviews, Elsevier, vol. 56(C), pages 1122-1128.
    3. Mohamed, M.H., 2016. "Reduction of the generated aero-acoustics noise of a vertical axis wind turbine using CFD (Computational Fluid Dynamics) techniques," Energy, Elsevier, vol. 96(C), pages 531-544.
    4. Liu, W.Y., 2017. "A review on wind turbine noise mechanism and de-noising techniques," Renewable Energy, Elsevier, vol. 108(C), pages 311-320.
    5. Tummala, Abhishiktha & Velamati, Ratna Kishore & Sinha, Dipankur Kumar & Indraja, V. & Krishna, V. Hari, 2016. "A review on small scale wind turbines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 56(C), pages 1351-1371.
    6. Vick, Brian & Broneske, Sylvia, 2013. "Effect of blade flutter and electrical loading on small wind turbine noise," Renewable Energy, Elsevier, vol. 50(C), pages 1044-1052.
    7. Mohamed, M.H., 2014. "Aero-acoustics noise evaluation of H-rotor Darrieus wind turbines," Energy, Elsevier, vol. 65(C), pages 596-604.

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