 Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me. |
Forum Index : Windmills : Tower attached to house?
| Author | Message | ||||
Tim_the_bloke Senior Member  Joined: 15/11/2009 Location: AustraliaPosts: 105 |
It seems a building would act as a great brace for a tower, avoiding guy wires which obstruct the yard. The building would also make it easier to raise and lower the tower, and simplify construction. However: Would the mill transmit noise into the house? Should people not sleep within the falling radius of a windmill tower? What are your opinions on attaching a windmill tower to a house? |
||||
| dwyer Guru  Joined: 19/09/2005 Location: AustraliaPosts: 574 |
Stay away from the house as the mill transmit noise into the house "YES" just like my workshop most transmit noise going though the cement ground and the roof where pole is held by attaching part of the roof including cables Keep the mill away from house a least 6 metre away or more distance the better less sound . Dwyer the bushman  |
||||
Downwind Guru Joined: 09/09/2009 Location: AustraliaPosts: 2333 |
The vibration and alternator noise will travel into the building and drive you all insaine. Council regs normally only allow 3 meters above a building fixture, and about 10m free standing without approval. Sometimes it just works |
||||
| Tim_the_bloke Senior Member Joined: 15/11/2009 Location: AustraliaPosts: 105 |
Mmm, perhaps we are already a little insane. I am not worried by council regulation, the area is rural and the site is too far from the public road to be visible. Also I believe a windmill is allowed. The noise is an issue. I imagine a building could act as a sound box - it might be like building a big guitar and trying to sleep inside it. |
||||
Gizmo Admin Group  Joined: 05/06/2004 Location: AustraliaPosts: 5078 |
Yep agree with the others, not a good idea to mount the tower off any building you plan to spend any time in. If you get a chance, put your ear against a windmill tower, and you'll be surprised the amount of noise you can hear. Rubber mounts, etc, may reduce the noise a little, but it will still drive you nuts. Glenn The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
||||
Don B Senior Member Joined: 27/09/2008 Location: AustraliaPosts: 190 |
Hi Tim, The alternator of wind turbine is inherently noisy because of torque pulsations, which transmit to its support structure. The more phases the alternator has, the lower will be the level of the pulsations, but they can never be totally eliminated (unless you completely unload the alternator, which is hardly the point). No car manufacturer these days would dream of hard bolting the engine into the vehicle for exactly the same reason (although this did not seem to bother Henry when he designed my first car - an A model Ford). The selection of an appropriate flexible mounting system to absorb most of the effects of torque pulsations is not complicated, but it does need to consider the likely frequencies involved, and the mass of the components. Generally speaking though, the softer and more flexible the mountings that you can use, and the closer to the vibration source that you can fit them, the more effective they will be. One problem with some, particularly soft, mountings is ensuring that they retain some mechanical restraint if they should wear out or shear (eg a bolt through rubber bushes). Despite all of this, the probability is that you would have some noticeable noise through a house mounted tower unless you had some exceptional mountings. At the noisiest times though, the direct wind noise might mask most of it. Regards Don B |
||||
| Tim_the_bloke Senior Member Joined: 15/11/2009 Location: AustraliaPosts: 105 |
I had not thought of this. Thinking upon it, the pulsations would be there and would make noise and would be unavoidable. Separate tower it will be. |
||||
 Print this page |
