Why can’t we have a second unit further down the shaft? Is it bird reasons?
In: Engineering
It’s just not worth it. As you get farther from the ground, wind speed becomes more constant. Closer to the ground it can get a big gusty. Wind turbines don’t perform well with gusts.
Also, for physics reasons, the tips of the propellers generate more power than the parts closer to the center. So, doubling propeller length will more than double power output.
So, the ideal wind turbine will be huge, and will have propellers that can reach up high where there’s constant air movement. A smaller unit down the shaft would generate almost nothing compared to the one on top.
Latest Answers