pipe310 mWater is flowing in a straight concrete lining centrifugally spun pipe as shown in the figureproblem 12. The difference between the two gauge readings is 185 kPa. The flow rate is designedto be 30 liter/s. By using Darcy Weisbach and Hazen William's formula, determine the pipediameter.(Ans.: 228 mm, 123 mm)TABLE 5.1: Pipe CharacteristiesPipeHazen-William*Roughnesse (mm)0.15C140Asbestos Cement (AC) – all agesCast Iron, Ductile Iron - new0.313010 years old- 20 years old1.53.010090Cast Iron coated – good condition all agesWelded steel - uncoated - new0.3135125100100- old0.61.5Coal tar enamel coated steel – newConcrete lining centrifugal spun – all agesGalvanized Iron (GI), Mild Steel (MS)HDPE, UPVC, PolyethyleneWrought IronCopper, Brass*The Malaysian Water Association - MWA (Design Guidelines for Water Supply Systems)0.150.151400.31300.0151550.045ND0.0015NDND = No Data

The given data is: Length of pipe=310 m Difference between gauge reading, hf=185 kpa…

Water is flowing in a straight concrete lining centrifugally spun pipe as shown in the figure problem 12. The difference between the two gauge readingsis 185 kPa. The flow rate is designed to be 30 liter/s. By using Darcy Weisbach and Hazen William's formula, determine the pipe

Water is flowing in a straight concrete lining centrifugally spun pipe as shown in the figure problem 12. The difference between the two gauge readingsis 185 kPa. The flow rate is designed to be 30 liter/s. By using Darcy Weisbach and Hazen William's formula, determine the pipe

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?

Question

pipe
310 m
Water is flowing in a straight concrete lining centrifugally spun pipe as shown in the figure
problem 12. The difference between the two gauge readings is 185 kPa. The flow rate is designed
to be 30 liter/s. By using Darcy Weisbach and Hazen William's formula, determine the pipe
diameter.
(Ans.: 228 mm, 123 mm)
TABLE 5.1: Pipe Characteristies
Pipe
Hazen-William*
Roughness
e (mm)
0.15
C
140
Asbestos Cement (AC) – all ages
Cast Iron, Ductile Iron - new
0.3
130
10 years old
- 20 years old
1.5
3.0
100
90
Cast Iron coated – good condition all ages
Welded steel - uncoated - new
0.3
135
125
100
100
- old
0.6
1.5
Coal tar enamel coated steel – new
Concrete lining centrifugal spun – all ages
Galvanized Iron (GI), Mild Steel (MS)
HDPE, UPVC, Polyethylene
Wrought Iron
Copper, Brass
*The Malaysian Water Association - MWA (Design Guidelines for Water Supply Systems)
0.15
0.15
140
0.3
130
0.015
155
0.045
ND
0.0015
ND
ND = No Data

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