Wind Power Generation: Calculating Output from 30mm Turbine

AI Thread Summary
To calculate the power output from a 30mm wind turbine, it's essential to consider the number of coils surrounding the armature and the wind speed. Documentation for specific alternators typically provides output data at various RPMs, which can guide calculations. Built-in regulators in alternators help prevent overdriving by limiting output. Additionally, the gearing between the turbine vanes and the alternator plays a crucial role in efficiency. Understanding these factors will aid in designing effective wind-powered gadgets.
stu1984
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I am looking to design a few ‘wind powered’ gadgets, on a very small scale. I am struggling to calculate the power generated from a turbine of about 30mm diameter. I understand that the number of coils surround the armature has an obvious effect on the generation, but was wondering if there was an equation to unable me to calculate the output under certain wind speeds?

cheers
 
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There should be documentatin available to show output at various rpm's for your alternator of choice. Most have built-in regulators to limit that output if the unit is overdriven. The other factor will be your gearing between the vanes and the alternator. In some cases (probably not yours), the vane pitch can be varied as well to maintain a certain speed.
 

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