Answered: centrifugal pump operating under steady…

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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A pump draws water from a reservoir and conveys it to another reservoir 30 m above. The suction pipe is 100 mm in diameter and 10 m long while the delivery pipe is 100 mm in diamter and 150 m long. if the the velocity in the pipe is 3 m/s, the friction factor of the pipe 0.008, and the pump and motor efficiencies are 85 % and 92 %, respectively. Assume height of pump/motor negliglible. Q1. Calculate the gauge pressure at the pump's inlet (at C) (kN/m2) Q2. Calculate the gauge pressure at the pump's outlet (at D) (kN/m2) Q3. Calculate input power to motor (kW)
If the center of gravity of the stacked tables is at G,and the stack weighs 100 lb, determine the smallestforce P the boy must push on the stack in order tocause movement. The coefficient of static friction atA and B is μs = 0.3. The tables are locked together. P = _____________
= (a) A centrifugal pump, with salt water as the working fluid, has the impeller blades rotating at 750 rpm. The fluid enters the blades in the radial direction, i.e. at an angle of α₁ = 0°, and exits the blades at an angle of 35° from the radial direction. i.e. α₂ = 35⁰. The inlet radius and blade width are r₁ 12.0 cm and b₁ = 18.0 cm, respectively. The outlet radius and blade width are 1₂ = 24.0 cm and b₂ = 16.2 cm, respectively. Assuming 100 percent efficiency, and if the volumetric flow-rate through the pump is 0.573 m³/s, compute the net head produced by the centrifugal pump. Furthermore, calculate the required brake horsepower in Watts. Take the density of salt water to be p 998.0 kg/m³. =

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centrifugal pump operating under steady flow conditions delivers 2,270 kg/min of water from an initial pressure of 82,740 Pa to a final pressure of 275,800 Pa. The diameter of the inlet pipe to the pump is 15.24 cm and the diameter of the discharge pipe is 10.16 cm. What is the work done