-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)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe4f7903b-f691-4d62-89f0-1a3862e049b4%2Fb2086b93-78ae-432d-91b6-344f506b1aae%2F04fwcda_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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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