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Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Ql: In the duct layout shown
in figure below, outlet 1 & 2
deliver 20 m'/min each and
2
E (3 m)
outlet 3 delivers 28 m/min.
Select a velocity of 8 m/s in
section A. (1) Design and
resize the duct system so that
A (6 m)
B (3 m)
C (5 m)
Fan
D (3 m)
F(5 m)
no dampering is required at
the outlet using the equal
friction method and (2)
determine its
static and
3
dynamic & total pressure
with rectangular section of h=300 mm, (3) fan static, total pressure and take radius of
curvature for the branch and elbow duct as 250 mm. If you know that the losses can be taken
as follow:
For elbow: 0.25 *dynamic pressure
For branch: 0.25 *dynamic pressure + elbow loss
&
For the grille outlet: 0.2*dynamic pressure
For straight through section: 0.25 *dynamic pressure
Transcribed Image Text:Ql: In the duct layout shown in figure below, outlet 1 & 2 deliver 20 m'/min each and 2 E (3 m) outlet 3 delivers 28 m/min. Select a velocity of 8 m/s in section A. (1) Design and resize the duct system so that A (6 m) B (3 m) C (5 m) Fan D (3 m) F(5 m) no dampering is required at the outlet using the equal friction method and (2) determine its static and 3 dynamic & total pressure with rectangular section of h=300 mm, (3) fan static, total pressure and take radius of curvature for the branch and elbow duct as 250 mm. If you know that the losses can be taken as follow: For elbow: 0.25 *dynamic pressure For branch: 0.25 *dynamic pressure + elbow loss & For the grille outlet: 0.2*dynamic pressure For straight through section: 0.25 *dynamic pressure
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