If the water flow rate is 2 efs, and the 4 elbows have long radius and flanged, taking the major and minor losses into consideration calculate the followings: (i) The power delivered by the pump. (ii) The power consumed by the pump. The friction in the pump can be considered negligible. You may assume a reasonable value of pump efficiency to solve the problem. Viscositas -18215
If the water flow rate is 2 efs, and the 4 elbows have long radius and flanged, taking the major and minor losses into consideration calculate the followings: (i) The power delivered by the pump. (ii) The power consumed by the pump. The friction in the pump can be considered negligible. You may assume a reasonable value of pump efficiency to solve the problem. Viscositas -18215
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:Question 2
If the water flow rate is 2 efs, and the 4 elbows have long radius and flanged, taking the
major and minor losses into consideration calculate the followings:
(i)
The power delivered by the pump.
(ii) The power consumed by the pump.
The friction in the pump can be considered negligible. You may assume a reasonable
value of pump efficiency to solve the problem.
vis cor Imag
Friction Factor
0.1
0.09
0.08
0.07
0.06
0.05
Water
T=
60°F
0.04
0.03
0.02
0.015
0.01
Elevation=30 ft
Laminar Flow
Diameter 6 in.
Irun, cast
Sewers, old
******
Material
Concrete coarse
Concrete, new smooth
Drawn tubing
Glass, Plastic Perspex
10³
L = 500 ft
0.15
3.0
0.1
Steel, mortar lined
Steel, rusted
0.5
Steel, structural or forged 0.025
Water mains, old
1.0
2 elbows are long radius 90°, flanged type
2 elbows are regular 45°, threaded
Pipe material: Cast iron (Roughness, & = 0.01 inch)
Transition Region
e (mm)
0.25
0.025
0.0025
0.0025
Elevation 10 ft
104
TK
no²
Moody Diagram
Complete Turbulence
Elevation = 60 ft
L= 1200 ft, D= 6 in.
Friction Factor = AP
⠀⠀⠀⠀⠀
105
106
Reynolds Number, Re=
Free jet
pVd
14
Smooth Pipe
107
0.05
0.04
0.03
0.02
0.015
0.01
0.005
Relative Pipe Roughness
0.002
0.001
5x10-4
2x10-4
10-4
5x10-5
10-5
5x10-6
10-6
108
{hl= (ko
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