[3] An engineering student considers using a fan as a drone model. He plans to face the box-enclosed fan so that the air blast is directed face down through a 1 m diameter balde span area. The system weighs 2.3 kgf, and the student will secure the system from rotating. By increasing the power to the fan, he plans to increase the blade rpm and air exit velocity until the exhaust provides sufficient upward force to cause the drone to hover in the air. Determine (a) the air exit velocity to lift the drone, (b) the volumetric flow rate needed, and (c) the minimum mechanical power that must be supplied to the airstream. (The air density is 1.293 kg/m³) 600 rpm
[3] An engineering student considers using a fan as a drone model. He plans to face the box-enclosed fan so that the air blast is directed face down through a 1 m diameter balde span area. The system weighs 2.3 kgf, and the student will secure the system from rotating. By increasing the power to the fan, he plans to increase the blade rpm and air exit velocity until the exhaust provides sufficient upward force to cause the drone to hover in the air. Determine (a) the air exit velocity to lift the drone, (b) the volumetric flow rate needed, and (c) the minimum mechanical power that must be supplied to the airstream. (The air density is 1.293 kg/m³) 600 rpm
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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![[3] An engineering student considers using a fan as a drone model. He plans to face the
box-enclosed fan so that the air blast is directed face down through a 1 m diameter
balde span area. The system weighs 2.3 kgf, and the student will secure the system from
rotating. By increasing the power to the fan, he plans to increase the blade rpm and air
exit velocity until the exhaust provides sufficient upward force to cause the drone to
hover in the air. Determine (a) the air exit velocity to lift the drone, (b) the volumetric
flow rate needed, and (c ) the minimum mechanical power that must be supplied to the
airstream. (The air density is 1.293 kg/m³)
600 rpm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdb07f71b-3a39-4ebe-a118-3d0ec49ba915%2F128d879a-464d-4f54-8c93-c8d263d86b7d%2Fewnir9j_processed.jpeg&w=3840&q=75)
Transcribed Image Text:[3] An engineering student considers using a fan as a drone model. He plans to face the
box-enclosed fan so that the air blast is directed face down through a 1 m diameter
balde span area. The system weighs 2.3 kgf, and the student will secure the system from
rotating. By increasing the power to the fan, he plans to increase the blade rpm and air
exit velocity until the exhaust provides sufficient upward force to cause the drone to
hover in the air. Determine (a) the air exit velocity to lift the drone, (b) the volumetric
flow rate needed, and (c ) the minimum mechanical power that must be supplied to the
airstream. (The air density is 1.293 kg/m³)
600 rpm
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