EL85M180 mopened end-ELS0mWater is flowing in a straight, coated cast iron pipe as shown in the figure of Problem 8. The flowvelocity is designed to be 5.58 m/s. By using Darcy Weisbach and Hazen William's formula,determine the pipe diameter and the flow rate.(Ans.: DW: 192 mm, 161.56 liter/s; HW: 140 mm, 85.9 liter/s)TABLE 5.1: Pipe CharacteristicsPipeAsbestos Cement (AC) – all agesCast Iron, Ductile IronRoughnesse (mm)0.150.3Hazen-WilliamC14013010090- new10 years old– 20 years old1.53.0Cast Iron coated – good condition all agesWelded steel - uncoated - new1351250.30.6– old1.5100Coal 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)0.150.150.30.0151001401301550.045ND0.0015NDND = No Data

Schematic diagram of the given problem: V (flow velocity) = 5.58 m/s

-ELSSM 180 m opened end 8-- ELS0m Water is flowing in a straight, coated cast iron pipe as shown in the figure of Problem 8. The flow velocity is designed to be 5.58 m/s. By using Darcy Weisbach and Hazen William's formula, determine the pipe diameter and the flow rate. (Ans.: DW: 192 mm, 161.56 liter/s; HW: 140 mm, 85.9 liter/s)

-ELSSM 180 m opened end 8-- ELS0m Water is flowing in a straight, coated cast iron pipe as shown in the figure of Problem 8. The flow velocity is designed to be 5.58 m/s. By using Darcy Weisbach and Hazen William's formula, determine the pipe diameter and the flow rate. (Ans.: DW: 192 mm, 161.56 liter/s; HW: 140 mm, 85.9 liter/s)

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

EL85M
180 m
opened end
-ELS0m
Water is flowing in a straight, coated cast iron pipe as shown in the figure of Problem 8. The flow
velocity is designed to be 5.58 m/s. By using Darcy Weisbach and Hazen William's formula,
determine the pipe diameter and the flow rate.
(Ans.: DW: 192 mm, 161.56 liter/s; HW: 140 mm, 85.9 liter/s)
TABLE 5.1: Pipe Characteristics
Pipe
Asbestos Cement (AC) – all ages
Cast Iron, Ductile Iron
Roughness
e (mm)
0.15
0.3
Hazen-William
C
140
130
100
90
- new
10 years old
– 20 years old
1.5
3.0
Cast Iron coated – good condition all ages
Welded steel - uncoated - new
135
125
0.3
0.6
– old
1.5
100
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
0.3
0.015
100
140
130
155
0.045
ND
0.0015
ND
ND = No Data

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