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Resource Documents by Harrison, John

Harrison, John
Response to HGC Literature Review
Response to “Low Frequency Noise and Infrasound Associated with Wind Turbine Generator Systems – A Literature Review” Also see: “Compliance Protocol for Wind Turbine Noise – Guideline for Acoustic Assessment and Measurement” Introduction The low frequency report, prepared by Howe Gastmeier Chapnik Ltd. was commissioned by the Ministry of the Environment (MOE), released in draft form in August 2010, released in final form to MOE in December 2010 and to the public in August 2011. Why MOE is issuing it . . . Complete article »

Harrison, John
Inadequacy of wind turbine noise regulations and their application
CONCLUSION Regulations for wind turbine noise presently in force are inadequate to protect rural residents from annoyance and, in many cases, health problems resulting from operating wind turbines. The typical noise limit of 40 dBA needs to be reduced to 35 dBA. There needs to be a 5 dBA penalty for amplitude modulation. There needs to be an analysis of turbulent inflow noise, for both atmospheric and wake turbulence. The uncertainty of noise prediction codes must be included. Together, these . . . Complete article »

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