1400 liters of water is needed to be pumped per minute from a lower reservoir to a higher reservoir as shown in Fig. Q2a. The elevation difference, z2 - Z1 is 7 m. Wrought iron pipes are used before and after the pump with diameters Di = 100 mm and D2 = 127 mm Total pipe length of the piping system is 40 m. The length of pipe before the pump is 30 m. The elbows used are flanged smooth 90° bends. The valve is angle valve. Taco Model 4013 FI Series centrifugal pump with the performance curves as shown in Figure Q2(b) is selected. The location of the pump is 1 m vertically below the lower reservoir and 30 m pipe-length away from the lower reservoir water exit point. (The properties of water: density, p = 997 kg/m³, viscosity, u= 0.891 ×103 kg/m.s, vapor pressure, Py = 3.169 kPa) a) Calculate the proper impeller size for this pump. b) Justify that there will be no cavitation. Care 213 Mn inp e.675 Sonixex 125 Medel 4013 1160 RPM aco naaSere NPSH 120A 25 50 Z2- Z1 Reservoir REQUIRED NSH 100 12.75241 -25 -250 D2 -200 1125 22 Y 9.75 (21 150 Reservoir Valve 2 100 6.15 (11d 20 SHPL Curves baed on cear w with specific gravty of10 Pump 200 300 1000 600 Flow in galios per min 00 Fig. Q2b

1400 liters of water is needed to be pumped per minute from a lower reservoir to a higher reservoir as shown in Fig. Q2a. The elevation difference, z2 - Z1 is 7 m. Wrought iron pipes are used before and after the pump with diameters Di = 100 mm and D2 = 127 mm Total pipe length of the piping system is 40 m. The length of pipe before the pump is 30 m. The elbows used are flanged smooth 90° bends. The valve is angle valve. Taco Model 4013 FI Series centrifugal pump with the performance curves as shown in Figure Q2(b) is selected. The location of the pump is 1 m vertically below the lower reservoir and 30 m pipe-length away from the lower reservoir water exit point. (The properties of water: density, p = 997 kg/m³, viscosity, u= 0.891 ×103 kg/m.s, vapor pressure, Py = 3.169 kPa) a) Calculate the proper impeller size for this pump. b) Justify that there will be no cavitation. Care 213 Mn inp e.675 Sonixex 125 Medel 4013 1160 RPM aco naaSere NPSH 120A 25 50 Z2- Z1 Reservoir REQUIRED NSH 100 12.75241 -25 -250 D2 -200 1125 22 Y 9.75 (21 150 Reservoir Valve 2 100 6.15 (11d 20 SHPL Curves baed on cear w with specific gravty of10 Pump 200 300 1000 600 Flow in galios per min 00 Fig. Q2b

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Problem 1.1MA

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Concept explainers

Fluid Dynamics

The study of the flow of gases and liquids, usually in and around solid surfaces, is known as fluid dynamics in physics and engineering. Fluid dynamics, for example, can be used to evaluate the movement of air through an airplane wing or the surface of a vehicle. It can also be used in ship design to increase the speed at which ships pass through water.

Question

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1400 liters of water is needed to be pumped per minute from a lower reservoir to a higher
reservoir as shown in Fig. Q2a. The elevation difference, z2 - zz is 7 m. Wrought iron
pipes are used before and after the pump with diameters D1 = 100 mm and D2 = 127 mm
Total pipe length of the piping system is 40 m. The length of pipe before the pump is 30
m. The elbows used are flanged smooth 90° bends. The valve is angle valve. Taco Model
4013 FI Series centrifugal pump with the performance curves as shown in Figure Q2(b) is
selected. The location of the punmp is 1 m vertically below the lower reservoir and 30 m
pipe-length away from the lower reservoir water exit point. (The properties of water:
density, p = 997 kg/m³, viscosity, µ= 0.891 ×10³ kg/m.s, vapor pressure, Py = 3.169 kPa)
a) Calculate the proper impeller size for this pump.
b) Justify that there will be no cavitation.
Curve na 2313
Min. Imp Bio. 675
Size 5x4x 12.75
Model 4013
1160 RPM
NPSH
aco' FI & CI Series
120LAS
20
25
40
45
50
55
60
Z2- Z1
Reservoir
REQUIRED NPSH
100
12.75 (241.3mm)
-25
250
80
-D2
20
-200
11.25" (22in)
-Z1
60
9.75 (210im
15
-150
Reservoir
Valve 2
40-
8.25 (2mim
10
100
JOHPO SAW)
6.75 (11)im)-
20
SHPG AW)
APT SAW)
Curves based on cear we
with specific grwty of 10
Pump
100
200
300
400
500
600
700
B00
S00
1000
Flow in galions per minte
D1
Fig. Q2b

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