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fabricator01
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Hello all, I am not an engineer, but I am a 32 year steel fabricator, I have recently built a 17 foot wind turbine with an axial flux alternator, I would like to build a tower for it but would like to get a general idea before I go to a local engineer for actual stamped drawings which are required for building inspector approval.
The turbine weighs 350 pounds and has a 17 foot diameter swept area, my general idea right now is to start with a bottom section of 16 inch 3/8 wall schedual 40 pipe 20 feet long and then go to a 20 foot section of 14 inch and then a 20 foot section of 12 inch and then a 20 foot section of 10 inch pipe for an eighty foot tower.
Each section would have a flange with probably 12 holes and gussets going from the pipe to the flanges.
The bottom flange will be 24 inch diameter with longer gussets from flange to pipe.
The foundation would be long J bolts into a large concrete foundation, the J bolts would probably be in the 1.25 inch neighborhood, probably 12 of them or so.
You can see a video of the turbine flying on a test tower here.
The turbine weighs 350 pounds and has a 17 foot diameter swept area, my general idea right now is to start with a bottom section of 16 inch 3/8 wall schedual 40 pipe 20 feet long and then go to a 20 foot section of 14 inch and then a 20 foot section of 12 inch and then a 20 foot section of 10 inch pipe for an eighty foot tower.
Each section would have a flange with probably 12 holes and gussets going from the pipe to the flanges.
The bottom flange will be 24 inch diameter with longer gussets from flange to pipe.
The foundation would be long J bolts into a large concrete foundation, the J bolts would probably be in the 1.25 inch neighborhood, probably 12 of them or so.
You can see a video of the turbine flying on a test tower here.
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