#7,010 in Business & money books
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Reddit mentions of Wind Energy Explained: Theory, Design and Application
Sentiment score: 1
Reddit mentions: 2
We found 2 Reddit mentions of Wind Energy Explained: Theory, Design and Application. Here are the top ones.
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| Height | 9.700768 Inches |
| Length | 6.901561 Inches |
| Number of items | 1 |
| Weight | 2.6896395964 Pounds |
| Width | 1.598422 Inches |
It comes down to the speed of the air upwind of the blades compared to the speed of the air moving downwind the blade. If it comes to a complete stop, no more air can move past the blade, and you produce no power. If the air is moving at the same speed after the blades, they created no power moving across the blade's plane. You can create a model for the amount of energy produced compared to upwind air speed and vary the speed down wind. Take the derivative and find the maximum. Its when the downwind speed is 1/3 the upwind speed.
I studied wind turbines in school. My professor at UMASS was one of the first people in the country to put research into them. He's a really cool dude. Wrote a book on them in fact.
Betz Limit
https://en.wikipedia.org/wiki/Betz%27s_law
Professor's book
Wind Energy Explained: Theory, Design and Application https://www.amazon.com/dp/0470015004/ref=cm_sw_r_awd_S97Dub1MB4AG0
>Wind turbines need help to start,
They haven't for at least ten years. I could check this book if you really want details.