9.95. The mean velocity of water in a 150 mm horizontal pipe is 0.9 m/s. Calculate the loss of head through an abrupt con- traction to 50 mm diameter. If the pressure in the 150 mm pipe is 345 kPa, what is the pressure in the 50 mm pipe, neglecting pipe friction?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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PLEASE USE EQUATIONS ATTACHED
9.95. The mean velocity of water in a 150 mm horizontal pipe
is 0.9 m/s. Calculate the loss of head through an abrupt con-
traction to 50 mm diameter. If the pressure in the 150 mm
pipe is 345 kPa, what is the pressure in the 50 mm pipe,
neglecting pipe friction?
K₁ from Table 2 for abrrupt contraction
find
Using work- energy equation
Az
A₂/A₁
C
K₂
21102392 A1
2.A? 81000.0 1J0321 to 19
1200 to find the pressure. 14 or. Mive
stolwlog si/s919 mE.0 P
but mop, +V² F 2 P₂ +
Cup
2.10
erived
one wolf 829)
NINY 2.0 = 9
.
TABLE 2 Contraction, C., and Loss, Kr, Coefficients for Abrupt Contractions
0
0.617
0.50
0.1
0.624
0.46
0.2
0.632
0.41
0.3
0.643
0.36
0.4
0.659
0.30
V₂²
+ Z₂ +h₁0/₂
2 milyot has 9919
0.5
0.681
0.24
0.6
0.712
0.18
0.7
0.755
0.12
0.8
0.813
0.06
0.9
0.892
0.02
1.0
1.00
0
Transcribed Image Text:PLEASE USE EQUATIONS ATTACHED 9.95. The mean velocity of water in a 150 mm horizontal pipe is 0.9 m/s. Calculate the loss of head through an abrupt con- traction to 50 mm diameter. If the pressure in the 150 mm pipe is 345 kPa, what is the pressure in the 50 mm pipe, neglecting pipe friction? K₁ from Table 2 for abrrupt contraction find Using work- energy equation Az A₂/A₁ C K₂ 21102392 A1 2.A? 81000.0 1J0321 to 19 1200 to find the pressure. 14 or. Mive stolwlog si/s919 mE.0 P but mop, +V² F 2 P₂ + Cup 2.10 erived one wolf 829) NINY 2.0 = 9 . TABLE 2 Contraction, C., and Loss, Kr, Coefficients for Abrupt Contractions 0 0.617 0.50 0.1 0.624 0.46 0.2 0.632 0.41 0.3 0.643 0.36 0.4 0.659 0.30 V₂² + Z₂ +h₁0/₂ 2 milyot has 9919 0.5 0.681 0.24 0.6 0.712 0.18 0.7 0.755 0.12 0.8 0.813 0.06 0.9 0.892 0.02 1.0 1.00 0
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