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[pf] a suburban wind-electric generator? quiet, at 56 feet by David MacClement 07 September 2001 16:55 UTC |
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· This is from the designer (& currently the builder) of the 12 bladed Super Windrose, in Denmark. _I_ think the requirement of 45 db(A) at a distance of only 17 m from the turbine, is so strict that people can easily sleep undisturbed. · In some subdivisions in US cities, could the back fence be 56 ft (17 m) from all bedroom windows? It's actually further, when you take the slant distance from the wind-turbine on the top of a 45-to-50-ft tower. D. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://groups.yahoo.com/group/awea-wind-home/message/5764 has: From: "Claus Nybroe" <windmission@vip.cybercity.dk> . . Organization: windmission.dk To: mailing list awea-wind-home@yahoogroups.com List-Subscribe: <mailto:awea-wind-home-subscribe@yahoogroups.com> Subject: [a-w-h] Drejų Vindstation and dB(A) On the little (65 inhabitants) island of Drejų, I'm trying to establish a test station for small wind turbines. The authorities are positive, but I must indicate noise levels. So far, I have been operating 12 bladed super windroses, which meet the Danish claims of 45 db(A) for low-populated areas at a distance of only 17 m from the turbine. However, I'm also working on three bladed third-world [cheaper, direct-drive] kits. So, any indications of noise levels from your three bladed concepts will be more than welcome. Do not fear competition, your turbines might well end up at the Drejų Vindstation! All the best Claus *** Claus Nybroe, R&D http://www.windmission.dk Denmark - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - edited, then sent on, by David. David MacClement [davd @ ihug.co.nz] (remove spaces) http://davd.tripod.com/GrRR-010831_titles.html#top http://www.geocities.com/davd.geo/index.html#top *********************************************** ==^================================================================ EASY UNSUBSCRIBE click here: http://igc.topica.com/u/?aVxifP.aVEN4x Or send an email To: positive-futures-unsubscribe@igc.topica.com This email was sent to: csf@moscow.com T O P I C A -- Register now to manage your mail! http://www.topica.com/partner/tag02/register ==^================================================================
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