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(2/2)kg/m3, the local horizontal wind speed is approximately 10 m/s, what is the approximate length

By.Johns 2024-08-21 19:00:02 Share on facebook Share on Google Share on Instagram Share on Pinterest Share on Twitter Share on Tumblr Share on WhatsApp Share on Telegram Share on Reddit Visit our Instagram

Introduction (2/2)kg/m3, the local horizontal wind speed is approximately 10 m/s, what is the approximate length of the wind turbine blades to meet the design requirements? Either the length of the blade or the interior space of the R1

(2/2)kg/m3, the local horizontal wind speed is approximately 10 m/s, what is the approximate length

Suppose the length of the blade is R

The volume of air passing through it in 1 s is V=πR?v and the mass m=pV

L kinetic energy generated by air in 1s is Ek=1/ 2mv?=1/2pπR?v^3

The electrical energy converted in 1s E=20%Ek=20%·1/ 2pπR?v^3< /p>

So R=lower root [E/(20%·1/2pπR?v^3)]=Lower root (10E/pπv^3)=10m

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