Recent content by boyle007

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    Understanding the Relationship Between Power Input and Torque in Wind Turbines

    Thanks for the answers. I am still a bit confused. I would like to know the general before the details; first the chain of causality: the prime force (wind, water) begets torque on the shaft, which begets rotation, which begets power generation. Is that a correct "chain" of causality? If I...
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    Understanding the Relationship Between Power Input and Torque in Wind Turbines

    Hello Physics Forum, Thanks to the Physics Forum, I learned an equation that helps me understand the relation between torque and power generated for a wind turbine. The equation is P = m * ω and can be rewritten as m = P/n * 30/∏ where m = applied torque, P = power generated, n...
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    Torque needed to rotate low-speed shaft

    thanks very much for that answer. now i can understand the wind turbine problem. As far as weight goes, if lighter components for a wind turbine means less torque needed for acceleration, then why can't we try to find the lightest components, which would mean lighter winds for power? e.g., fan...
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    Torque needed to rotate low-speed shaft

    Excuse me: In the above equation, I meant Pi - not 30/n - it should be 30/Pi thank you
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    Torque needed to rotate low-speed shaft

    First, I would like to thank all who answered this query. Please tell me if I am getting this right: If one knows the power being generated and the rpm’s (of the high speed shaft), then one can calculate the approximate applied torque. So I can use the equation of M = P/n * 30/π where M =...
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    Torque needed to rotate low-speed shaft

    Thank you for the corrections. I meant 2-3 MW industrial turbines and I also meant 20 rpm. I was always confused about the idea of torque at a constant rpm and I thank you for the above answers. I know I might be asking in the wrong way, but what would be the force required to keep a shaft...
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    Torque needed to rotate low-speed shaft

    Hi, I'm interested in wind power/energy and I would like to know how much torque is required to rotate a low-speed shaft of either a 2mw or 3mw wind turbine at an rpm of 20. Also, I'd like to know if the weight of components (e.g. the shafts, gears, or any other components) affect how much...
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