Arcus were commissioned to undertake noise emission testing at a site in Cornwall for a major wind turbine manufacturer to assist in the development of their turbines. Measurements were undertaken before and after blade alterations to determine how these new blades affected noise emissions.
Wind turbine noise emission testing
Following the publication in 2013 of the Good Practice Guide to the Application of ETSU-R-97 for the Assessment and Rating of Wind Turbine Noise, wind turbine manufacturers’ noise data is subject to greater scrutiny than ever before.
2013 also saw the publication of an updated version of BS EN (IEC) 61400 11:2013, the benchmark methodology for determining the acoustic characteristics of wind turbines. This new standard introduced a more demanding assessment regime, particularly with regard to the determination of measurement uncertainty.
For smaller-scale turbines, the standard provides a simplified assessment methodology, which is the approach stipulated by the Renewable UK Small Wind Turbine Standard 2014 and which is a requirement for a turbine’s acceptance on to the Microgeneration Certification Scheme (MCS).
In order to help manufacturers meet these challenges, Arcus have invested in the equipment and software to perform noise emission testing to the new standard. This allows us to offer a cost-effective service and quick turnaround whilst ensuring the exacting requirements of the standard are achieved.
Benefits of Noise Emission Testing with Arcus:
- Turbines are tested in accordance with the most up to date standards, providing confidence in the derived sound power levels and frequency spectra.
- Test results are presented in a clear and concise report which can be issued to customers, developers and Local Authorities alike to maximise the efficiency of the planning process, giving the best chance of consent.
- Each test undertaken can contribute to the determination of a ‘Declared Sound Power Level’ in accordance with IEC 61400-14, which provides the greatest level of confidence in the results, minimising the risk to both the manufacturer and developer.
- Results of the tonal assessment can be used to aid the identification of potential sources of mechanical resonances and aerodynamic issues.
- Provides all the necessary acoustic information for a turbine’s MCS accreditation.
For more information on wind turbine noise measurements, please email us at firstname.lastname@example.org or call 01904 715470 and ask to speak to one of the team!