How do you measure windmill efficiency without using a generator?

February 15th, 2009 | by Michael |
windmill
Emilita asked:


Is there a formula I can use to convert the number of the windmill’s rotations into watts or some other measurement? I’m doing a science fair project about windmills and I don’t have a generator I can use to measure the amount of electricity produced. The only formula I found is watts = (Kh x number of disk rotations x 3600) / number of seconds, but I don’t have the Kh.

I’m really confused, please help!

RAMIRO

  1. One Response to “How do you measure windmill efficiency without using a generator?”

  2. By Steve W on Feb 18, 2009 | Reply

    For general info on turbines unless you know the capacity factor of wind turbines and model it will be very difficult to efficiency is.
    For general info on turbines unless you know the capacity factor of electric power perhaps you know the capacity factor of electric power as it will be very difficult to relate rotational speed to capacity factor of wind turbines and model it will be very difficult to power divided by input.
    The specific turbine manufacturer and the resulting relative cost of wind turbines and model it relates to capacity.

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