Determine the design parameters of a centrifugal pump which will deliver 55 I/sdiesel oil against a pressure of 200 kPa at the supplied power of 14.47 kW. Thespeed of the pump is 1250 rpm and specific gravity of oil is 0.85. The ratio ofwidth of the impeller at inlet and outlet is 2.0. The manometric efficiency is 76%and the velocity of whirl at inlet is zero

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Answered: Determine the design parameters of a…

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 rection turbine has guide vane angle 30° the runner blades make an angle of 80° relative to the tanget at inlet .the blades width at inlet is 1/4 of the outer diameter .the water does not have any tanget velocity at outlet.the head is 25 m and the rotational speed of the runner is 16.67 rotation per second (rps) the turbine efficiency is 88% determine the runner diameter at the inlet and the power developed by this turbine
Oil (y = 48lbf /ft°, p = 2 x 105 Ibf x s/ft2 and Pv = 1.9 PSI) is pumped into the system showing a speed of 4.6 ft/s. The atmospheric pressure is 14.7 PSI. The manufacturer provides the following data for a centrifugal pump operating at its maximum efficiency point: rotational speed of 3000 RPM, flow rate of 0.17 ft/s, NPSH of 150 ft, and dimensionless specific velocity of 0.48. Determine if the pump described has the necessary head to be installed in the system shown (ɛ/D = 0.001) when a 1750 RPM motor is available to drive it. Neglect larger losses after the pump.
An idelaized centrifugal pump, data given as follows; Blade outer radius of blade = 35 mm Power 2 KW Running speed = 2000 rpm Entry of liquid into the pump is axial and exit from the pump is radial with respect to impeller. Determine the mass fow rate of the liquid through the pump?
- A centrifugal pump with an impeller diameter of 350mm and specific speed of 19.15 and requires 15 kW to discharge 2.4 m³ /min of water, and runs at 1800 rpm. Determine the discharge, head and power required when the pump runs at 2400 rpm. The same discharge could be obtained by altering the impeller diameter without changing the rotational speed for this case find the new diameter of the impeller the head and the power required.
A multistage centrifugal pump is required to lift 9000 lit/min from a mine, the total head including friction being 500 m. If the speed of the pump is 2900 rpm, if the specific speed per stage is not to be less than 60.The least number of stages, O 10 O 6 . O 14 O 17
Determine the maximum total head at which a 7hp centrifugal pump can extract at a rate of 350 gpm if the pump efficiency is 50%.
When designing an impeller for a centrifugal pump, you would consider the following materials attributes. [M ten waaler vir 'n sentrifugale pomp ontwerp, sal jy die volgende materiaal eienskappe in ag neem.] O A. creep strength and density O B. hardness and chemical composition O C. toughness and stiffness O D. hardness and thermal expansion
A single stage impulse turbine steam enters with a velocity of 420 m/s and runs at 3300 r.p.m. If the blade speed ratio is 0.44, then the diameter of the wheel in meter will be the diameter of the wheel in meter
1. As a junior city engineer of a municipality, you are tasked to design the specifications of the pump with 3650 cu.m/day. The water source in the municipality is from an open reservoir and will supply to a pressure tank that will distribute to the municipality. open 4l Pressure reservoir Tank 70 m 15 m Pump Determine the following specifications of the pump and piping system (assume fluid stagnation at the pump). Velocity head at pt.1 to 2 if the diameter of the pipe is a.) 200 mm b.) Suction pressure of the pump in kPa (Pressure at pt. 2). c.) Velocíty head at pt.3 to 4 if the diameter of the pipe is 150 mm d.) Discharge pressure of the pump in kPa (Pressure at pt. 4). Assume atmospheric pressure at the pump. If an air vent is installed at the pipe just right before the pressure tank with diameter of 20 mm, what is the velocity of discharge in m/s? The height of the pressure tank is 12 m, what is the flowrate in cu.m/hr at pt.5 if the diameter of the pipe is 150 mm? e.) f.)
The fluid flow rate was 1 m3 / s and the head was 10 m in the experiment performed at 2000 rev/min by water with the 1/4 ratio model of a centrifugal pump designed to be used for oil. Calculate the power given by the pump to the fluid when the prototype pump operates at 1000 rev/min (ρ water = 1000 kg / m3, ρ oil = 800 kg / m3)
Problem1 A two stage centrifugal pump is designed to discharge water at a total head of 70 m with an overall efficiency of 0.76. The pump runs at 2331.6 rpm. The actual head developed (per stage) is 65% of the theoretical head. The flow at the inlet is pure radial. The impeller at the exit has a diameter of D2 = 0.219 m and a width of b, = 0.0216 m. The outlet blade angle is ß2 = 28°. Determine: 1. The flow rate of the pump. 2. The output power of the two stage centrifugal pump. p = 1000kg/m³ g = 9.81 m²/s Take

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