Moorhouse, AT, Elliott, AS, Eastwick, G, Evans, TA, Ryan, A, Von Hunerbein, S, Le Bescond, V and Waddington, DC 2011, Noise and vibration from building-mounted micro wind turnines part 3: prediction methodology , Project Report, Department for Environment, Food and Rural Affairs (DEFRA). (In Press)

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Abstract

This brief report describes a simplified method for estimation of levels of structure-borne sound in buildings to which a micro-wind turbine (MWT) is attached. The method is applicable to two specific designs of MWT, each for three lengths of mounting pole and for masonry buildings. The output gives expected noise level for given rotational speed of the MWT. Applicability and limitations of the method are described. A more general methodology is provided in companion reports but requires specialist knowledge to implement. Structure-borne sound is notoriously difficult to predict and several assumptions have been necessary in order to produce a sufficiently simple estimation method. Therefore, caution is required in relying on the predictions until sufficient confidence has been built up through experience of real installations.

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