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Problem 4.29
[Difficulty: 1]
Given:
Air flow system
Find:
Flow rate and velocity into each room; narrowest supply duct
Solution:
Basic equation
QV
A
⋅
=
Assumptions:
1) Steady flow
2) Incompressible flow 3) Uniform flow
The given data is:
Q
person
8
L
s
⋅
=
n
rooms
6
=
n
students
20
=
h
200 mm
⋅
=
w
500 mm
⋅
=
V
max
1.75
m
s
⋅
=
Then for each room
Q
room
n
students
Q
person
⋅
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 Fall '07
 Lear
 Fluid Mechanics

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