Question

10. Speed of the wind turbine will depend on
a. energy
O b. momentum
O c. velocity
blade size​

Answer 1

a minimum wind speed (generally 12-14 km/h) to begin turning and generate electricity. strong winds (50-60 km/h) to generate at full capacity. winds of less than 90 km/h; beyond that speed, the turbines must be stopped to avoid damage.

Answer 2

Explanation:

The fundamental theory of design and operation of wind turbines is derived based on a first principles approach using conservation of mass and conservation of energy in a wind stream. A detailed derivation ofthe “BetzEquation” and the “Betz Criterion” or “Betz Limit” is presented, and its subtleties, insights as well as the pitfalls in its derivation and application are discussed. This fundamental equation was first introduced by the German engineer Albert Betz in 1919 and published in his book“Wind Energie und ihre Ausnutzung durch Windmühlen,” or “Wind Energy and its Extraction through Wind Mills” in 1926.The theory that is developed applies to both horizontal and vertical axis wind turbines.