Two Bladed wind turbines
Posted by Stef Vlaanderen to Equipment, 2009-10-27 14:15:18
The current standard for onshore wind turbines is to have three blades. The main reason for this is that human spectators experience three blades as the more tranquil view. Offshore, where spectators do not have to be taken into account, the advantages of having two blades can be exploited.
Such advantages are:
- lower production costs
- easier to assemble
- higher rotational speed
Comments
0 - 2009-11-12 08:16:00
Lewis Lack (Commercial Director at Ocean Resource Ltd) commented on Linked In:
Much better for offshore wind farms since assembley and cost is lower. see www.nordicwindpower.com for a full discussion of benefits. Note higher noise output is not an issue when offshore and so running faster to improve efficiency especially where mean wind speeds are higher makes a lot of sense.
0 - 2009-11-12 08:17:02
Bernard Bulder (senior research engineer at Energy Research Foundation) commented on Linked In:
I agree with Sergio and Lewis that for offshore 2 bladed might be a real advantage.
Tip speed is a higher than 3 bladed so more noise but lower shaft torque. Visual impact of three blade machines seems to be better than 2 bladed machines but offshore that is also not very important. Other offset...