Q.2) As shown in the figure, gasoline (p=701 kg/m3, µ=0.51x10-3 N.s/m2) will be extracted from a tank through a pipe system. The pump discharge is 0.4 m3/s. All elbow connections are flanged, and the pipe is a cast pipe. The diameter of the suction and discharge pipe is 50 mm, and the length is 25 m. The effective pressure at point 2 is 100 kPa. Based on this; a) Find the hydraulic power that needs to be transferred to the gasoline? b) Assuming the total pump-motor efficiency is 75%, find the motor's electricity consumption?

Elements Of Electromagnetics
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Darcy friction factor, f
Q.2) As shown in the figure, gasoline (p=701 kg/m3, u=0.51x10-3 N.s/m2) will be extracted from a
tank through a pipe system. The pump discharge is 0.4 m3/s. All elbow connections are flanged,
and the pipe is a cast pipe. The diameter of the suction and discharge pipe is 50 mm, and the length
is 25 m. The effective pressure at point 2 is 100 kPa. Based on this; a) Find the hydraulic power
that needs to be transferred to the gasoline? b) Assuming the total pump-motor efficiency is 75%,
find
motor's
the
electricity
consumption?
0.1
0.09 Laminar Transitional Turbulent
flow
Bow flow
0.08 H
0.07
0.06
0.05
0.04
0.03
0.025
0.02
11
Material
0.015 Glass, plastic
Concrete
Wood stave
Rubber, smoothed
Copper or brass tubing
Cast iron
0.01
0.009
0.008
Galvanized iron
Wrought iron
Stainless steel
Commercial steel
ft
0
0.003-0.03
0.0016
0.000033
0.000005
0.00085
0.0005
0.00015
0.000007
0.00015
Roughness, e
-
mm
0
09-9
0.5
0.01
0.0015
0.26
0.15
0.046
0.002
0.045
-12 m
Fully rough turbulent flow (f levels off)
Smooth pipes
eID=0
Süzgeç
(K₁=1.3)
Input
power
e/D=0.000005
18 m
Çek valf
muammmm.
0.05
0.04
0.03
e/D=0.000001
▬▬▬▬▬▬▬▬
—
0.00001
103 2(10) 3 4 5 6 8 10 2(10) 3 4 5 6 8 105 2(105) 3 4 5 6 8 106 2(106) 3 4 5 6 8 107 2(107) 3 4 5 6 8 108
Reynolds number, Re
0.02
0.015
0.01
0.008
0.006
0.004
0.002
0.001
0.0008
0.0006
0.0004
0.0002
0.0001
0.00005
Relative roughness, a/D
Transcribed Image Text:Darcy friction factor, f Q.2) As shown in the figure, gasoline (p=701 kg/m3, u=0.51x10-3 N.s/m2) will be extracted from a tank through a pipe system. The pump discharge is 0.4 m3/s. All elbow connections are flanged, and the pipe is a cast pipe. The diameter of the suction and discharge pipe is 50 mm, and the length is 25 m. The effective pressure at point 2 is 100 kPa. Based on this; a) Find the hydraulic power that needs to be transferred to the gasoline? b) Assuming the total pump-motor efficiency is 75%, find motor's the electricity consumption? 0.1 0.09 Laminar Transitional Turbulent flow Bow flow 0.08 H 0.07 0.06 0.05 0.04 0.03 0.025 0.02 11 Material 0.015 Glass, plastic Concrete Wood stave Rubber, smoothed Copper or brass tubing Cast iron 0.01 0.009 0.008 Galvanized iron Wrought iron Stainless steel Commercial steel ft 0 0.003-0.03 0.0016 0.000033 0.000005 0.00085 0.0005 0.00015 0.000007 0.00015 Roughness, e - mm 0 09-9 0.5 0.01 0.0015 0.26 0.15 0.046 0.002 0.045 -12 m Fully rough turbulent flow (f levels off) Smooth pipes eID=0 Süzgeç (K₁=1.3) Input power e/D=0.000005 18 m Çek valf muammmm. 0.05 0.04 0.03 e/D=0.000001 ▬▬▬▬▬▬▬▬ — 0.00001 103 2(10) 3 4 5 6 8 10 2(10) 3 4 5 6 8 105 2(105) 3 4 5 6 8 106 2(106) 3 4 5 6 8 107 2(107) 3 4 5 6 8 108 Reynolds number, Re 0.02 0.015 0.01 0.008 0.006 0.004 0.002 0.001 0.0008 0.0006 0.0004 0.0002 0.0001 0.00005 Relative roughness, a/D
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