_wind-generator-measuring-starting-torque.jpg "Wind Generator: measuring starting torque from double diode Video Screenshot Preview")
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⏲ Duration: 7 min 61 sec
✓ Published: 29-Jul-2012
✓ Published: 29-Jul-2012
Description:
A 5 to 8 foot diameter wind blade needs starting torque of 1/6 foot-pound.You can measure this before making a blade purchase or build. Just attach a straight stick and measure as per my video.nnI estimate my 1/3 foot-pound generator resistance is starting to turn in a 10 mph wind.I'm going to try to improve that by doubling the diameter of the generator pulley, thus reducing starting torque by one half. Since wind forcenis tripled by velocity then 10mph/8mph = 1.25 and 1.25 x 1.25 x 1.25 =
A 5 to 8 foot diameter wind blade needs starting torque of 1/6 foot-pound.You can measure this before making a blade purchase or build. Just attach a straight stick and measure as per my video.nnI estimate my 1/3 foot-pound generator resistance is starting to turn in a 10 mph wind.I'm going to try to improve that by doubling the diameter of the generator pulley, thus reducing starting torque by one half. Since wind forcenis tripled by velocity then 10mph/8mph = 1.25 and 1.25 x 1.25 x 1.25 =
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