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Q1: Water is to be pumped (whose characteristics below) from one large open tank into an apparatus working under a pressure of 2 atm. The pipe diameter is 0.15 m and the pipe length is 61 m. There are minor losses at the entrance, exit and throughout the pipe. The friction factor will be taken as 0.02. Efficiency of the pump =0.7 Calculate: a) The flow-rate and shaft-power needed when the pump is operated at 1000 rev/min. b) The flow rate and the power when the speed of the pump increased by 10%. c) The flow rate and the power when two pump operate at series. (2) Water K2 = 1.5 K = 1.0 3 m 0.15 m Diameter of pipe = Total pipe length = 61 m Pump %3D K = 0.5

Q1: Water is to be pumped (whose characteristics below) from one large open tank into an apparatus working under a pressure of 2 atm. The pipe diameter is 0.15 m and the pipe length is 61 m. There are minor losses at the entrance, exit and throughout the pipe. The friction factor will be taken as 0.02. Efficiency of the pump =0.7 Calculate: a) The flow-rate and shaft-power needed when the pump is operated at 1000 rev/min. b) The flow rate and the power when the speed of the pump increased by 10%. c) The flow rate and the power when two pump operate at series. (2) Water K2 = 1.5 K = 1.0 3 m 0.15 m Diameter of pipe = Total pipe length = 61 m Pump %3D K = 0.5

Elements Of Electromagnetics
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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Water is to be pumped (whose characteristics below) from one large open tank into an apparatus working under a pressure of 2 atm. The pipe diameter is 0.15 m and the pipe length is 61 m. There are minor losses at the entrance, exit and throughout the pipe. The friction factor will be taken as 0.02. JEfficiency of the pump =0.7 Calculate: The flow-rate and shaft-power needed when the pump is operated at 1000 rev/min. The flow rate and the power when the speed of the pump increased by 10%. c) The flow rate and the power when two pump operate at parallel.

3:10 团/山 qq2.JPG Q1: Water is to be pumped (whose characteristics below) from one large open tank into an apparatus working under a pressure of 2 atm. The pipe diameter is 0.15 m and the pipe length is 61 m. There are minor losses at the entrance, exit and throughout the pipe. The friction factor will be taken as 0.02. Efficiency of the pump =0.7 Calculate: a) The flow-rate and shaft-power needed when the pump is operated at 1000 rev/min. b) The flow rate and the power when the speed of the pump increased by 10%. c) The flow rate and the power when two pump operate at series. Water K2 = 1.5 K = 1.0 Diameter of pipe = 0.15 m Total pipe length = 61 m 3 m Pump (1) K = 0.5 Qm/s h/m 0.0 0.013 0.025 0.038 0.050 0.063 0.076 0.088 0.101 0.114 0.126 0.139 27.4 26.8 25.9 25.3 24.4 23.8 21.9 21.3 20.4 18.3 15.8 13.7
Transcribed Image Text:3:10 团/山 qq2.JPG Q1: Water is to be pumped (whose characteristics below) from one large open tank into an apparatus working under a pressure of 2 atm. The pipe diameter is 0.15 m and the pipe length is 61 m. There are minor losses at the entrance, exit and throughout the pipe. The friction factor will be taken as 0.02. Efficiency of the pump =0.7 Calculate: a) The flow-rate and shaft-power needed when the pump is operated at 1000 rev/min. b) The flow rate and the power when the speed of the pump increased by 10%. c) The flow rate and the power when two pump operate at series. Water K2 = 1.5 K = 1.0 Diameter of pipe = 0.15 m Total pipe length = 61 m 3 m Pump (1) K = 0.5 Qm/s h/m 0.0 0.013 0.025 0.038 0.050 0.063 0.076 0.088 0.101 0.114 0.126 0.139 27.4 26.8 25.9 25.3 24.4 23.8 21.9 21.3 20.4 18.3 15.8 13.7
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