he fan shown in Figure 6 blows air at the rate of 5700ft3/min. The fan weighs 35 lb and has its center of gravity at G. The specific weight of air is γ = 0.076lb/ft3. Assume that the upstream velocity of air is zero. Determine: (a) The force exerted by the fan on the air. (b) The pressure rise across the fan blades in psi. (c) The power required by the fan. (1 horsepower = 550 lb-ft/s)
he fan shown in Figure 6 blows air at the rate of 5700ft3/min. The fan weighs 35 lb and has its center of gravity at G. The specific weight of air is γ = 0.076lb/ft3. Assume that the upstream velocity of air is zero. Determine: (a) The force exerted by the fan on the air. (b) The pressure rise across the fan blades in psi. (c) The power required by the fan. (1 horsepower = 550 lb-ft/s)
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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he fan shown in Figure 6 blows air at the rate of 5700ft3/min. The fan weighs 35 lb and has its center of
gravity at G. The specific weight of air is γ = 0.076lb/ft3. Assume that the upstream velocity of air is zero. Determine:
(a) The force exerted by the fan on the air.
(b) The pressure rise across the fan blades in psi.
(c) The power required by the fan. (1 horsepower = 550 lb-ft/s)
(d) The smallest diameter d of the base so that the fan won’t tip over.
Transcribed Image Text:1.5 ft
„G
0.5 ft
4 ft
d-
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