"Study books and observe nature; if they do not agree, throw away the books." ~ William A. Albrecht
James Freyr wrote:Hi Martin, welcome to permies!
Have you tried contacting the manufacturer of the wind turbine for recommended guidelines?
"Study books and observe nature; if they do not agree, throw away the books." ~ William A. Albrecht
James Freyr wrote:Man, that sure is inconvenient. Here's my suggestion: a pole that can support the weight of the wind turbine, or vertical loads, and then attach guide wires to keep it upright and prevent it from listing or the even falling over in strong winds, the lateral loads, like in the picture below.
Iterations are fine, we don't have to be perfect
My 2nd Location:Florida HardinessZone:10 AHS:10 GDD:8500 Rainfall:2in/mth winter, 8in/mth summer, Soil:Sand pH8 Flat
Iterations are fine, we don't have to be perfect
My 2nd Location:Florida HardinessZone:10 AHS:10 GDD:8500 Rainfall:2in/mth winter, 8in/mth summer, Soil:Sand pH8 Flat
S Bengi wrote:The company does seem to offer a pole system. $277 for every 5.2m. So you will probably need 3X.
$831 for 15.6m and $554 for 10.2m
https://www.makemu.it/prodotto/m40-modular-pole-system/?lang=en
Martin Rusten wrote:
i still prefer to get the dimmentiones for pipe that can fully support the turbine by it self
"Study books and observe nature; if they do not agree, throw away the books." ~ William A. Albrecht
James Freyr wrote:
Martin Rusten wrote:
i still prefer to get the dimmentiones for pipe that can fully support the turbine by it self
I think this may prove to be extremely challenging. I'm no engineer, but I ran a quick leverage force/load calculator I found on the internets, which I input the variables and made basically a lever with the fulcrum right at one end, which is essentially a vertical pole in the ground. If 10lbs of lateral force is pushed on the top of a pole 60 feet tall, about 2000lbs of lateral force needs to be resisted at the base where it's in the ground. I hope this gives a general idea of the forces involved with tall poles, and why when we see them, they always seem to be supported with guide wires. I can imagine a gentle breezy day pushing 10lbs on the wind turbine, but I think really windy days that have 50mph wind gusts may exert incredible forces at the base of the pole that need to be accounted for.
James Freyr wrote:
Martin Rusten wrote:
i still prefer to get the dimmentiones for pipe that can fully support the turbine by it self
I think this may prove to be extremely challenging. I'm no engineer, but I ran a quick leverage force/load calculator I found on the internets, which I input the variables and made basically a lever with the fulcrum right at one end, which is essentially a vertical pole in the ground. If 10lbs of lateral force is pushed on the top of a pole 60 feet tall, about 2000lbs of lateral force needs to be resisted at the base where it's in the ground. I hope this gives a general idea of the forces involved with tall poles, and why when we see them, they always seem to be supported with guide wires. I can imagine a gentle breezy day pushing 10lbs on the wind turbine, but I think really windy days that have 50mph wind gusts may exert incredible forces at the base of the pole that need to be accounted for.
frank li wrote:I typed this in and came back with scads of promising results.
"wind generator tower loading"
https://www.google.com/url?sa=t&source=web&rct=j&url=https://ir.uiowa.edu/cgi/viewcontent.cgi%3Farticle%3D2427%26context%3Detd&ved=2ahUKEwihmfX58tXgAhUs4YMKHa6yCaYQFjAFegQIBBAB&usg=AOvVaw3_r2bQ8yXRJ_Gbt6vevLMB
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.homepower.com/articles/wind-power/design-installation/ask-experts-wind-force&ved=2ahUKEwihmfX58tXgAhUs4YMKHa6yCaYQFjADegQIAhAB&usg=AOvVaw01Cs8QHbpkghfWlhVgcWU3
https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.simpack.com/fileadmin/simpack/doc/newsletter/2014/March_2014/Spreads/SN-1-Mar-2014_SIMPACK_Wind-Turbines_Load-Calculation_HRes_spreads.pdf&ved=2ahUKEwihmfX58tXgAhUs4YMKHa6yCaYQFjABegQIARAB&usg=AOvVaw29z_Q4ULz2gmrq3US_vxy9
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.nrel.gov/docs/fy05osti/37112.pdf&ved=2ahUKEwihmfX58tXgAhUs4YMKHa6yCaYQFjAAegQIBRAB&usg=AOvVaw3ZCLvzNUkhhTxG9Hc-mKHi
So it goes - Vonnegut
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