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.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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PAY ATTENTION TO THE QUESTION : What is the resulting flow rate in the system if three pumps are used in parallel? (a) 0.483 m^3/s (b) 0.364 m^3/s (c) 0.333 m^3/s (d) 0.563 m^3/s 1. The Head -flowrate curve for a centrifugal pump is given by: HP = 28 -30Q2 Where, HP is in meter and Q is in m3/s . This pump is used to pump water for a system with the following (H-Q) curve: HS = 8 + 150Q2 Where, HS is in meter and Q is in m3/s . IT SAYS : if theee pumps are used in parallel PAY ATTENTION Multiple choice choose correct answer
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