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Explain the reason why the wake of a horizontal axis wind turbine at normal operating conditions shows an expansion downstream of the rotor disk.

Explain the reason why the wake of a horizontal axis wind turbine at normal operating conditions shows an expansion downstream of the rotor disk.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Explain the reason why the wake of a horizontal axis wind turbine at normal operating conditions shows an expansion downstream of the rotor disk. A B C D E A. B It is a direct result of mass & momentum conservation B. If we double the diameter of a wind turbine and every other aspect of its design, hypothetically, stays the same, what is the expected effect on its rated power? C. It is due to the effect of turbulence It is a direct result of momentum conservation D. It is due to the slow-down of the wind on the blades E. It is because of the unsteady flow over the blades it is due to the rotation axis of the wind turbine, horizontal vs vertical Will stay the same Will be halved Will increase in a cubic way Will double Will quadruple E. It will quadruple. Power is proportional to the area so if the diameter goes up by a factor of 2 the power will go up 4 times.
Transcribed Image Text:Explain the reason why the wake of a horizontal axis wind turbine at normal operating conditions shows an expansion downstream of the rotor disk. A B C D E A. B It is a direct result of mass & momentum conservation B. If we double the diameter of a wind turbine and every other aspect of its design, hypothetically, stays the same, what is the expected effect on its rated power? C. It is due to the effect of turbulence It is a direct result of momentum conservation D. It is due to the slow-down of the wind on the blades E. It is because of the unsteady flow over the blades it is due to the rotation axis of the wind turbine, horizontal vs vertical Will stay the same Will be halved Will increase in a cubic way Will double Will quadruple E. It will quadruple. Power is proportional to the area so if the diameter goes up by a factor of 2 the power will go up 4 times.
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