Answered: A 5MW rated power wind turbine has a…

A 5MW rated power wind turbine has a rotational speed of 20 rpm. If the wind speed is 54km/hr and the tip speed ratio is 4.2, what is its blade length? O a. 30.08m O b. 20m O c. 60.16m. O d. 40m.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter39: Residential Energy Auditing

Section: Chapter Questions

Problem 19RQ: Name four causes for backdrafting. _____,_____,_____, and _____.

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

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A 5MW rated power wind
turbine has a rotational speed
of 20 rpm. If the wind speed is
54km/hr and the tip speed
ratio is 4.2, what is its blade
length?
O a. 30.08m
O b. 20m
O c. 60.16m.
O d. 40m.

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