The front and side views of a centrifugal impeller are shown in the figure below. All symbols have their usual meanings. The outer radius of the impeller is r2 = 0.4 m and the blade height a he impeller outlet b₂ = 0.03 m. The volume flow rate of water (density = 1000 kg/m³) through the impeller is 0.2 m³/s. The outlet blade angle 8₂ = 50 degrees and the impeller rotational speed w 1600 rpm. Assume negligible losses, and the design conditions of whirl-free and shock-free entry. The impeller torque is __________ N-m. B₂ I Front View b2. Side View

The front and side views of a centrifugal impeller are shown in the figure below. All symbols have their usual meanings. The outer radius of the impeller is r2 = 0.4 m and the blade height a he impeller outlet b₂ = 0.03 m. The volume flow rate of water (density = 1000 kg/m³) through the impeller is 0.2 m³/s. The outlet blade angle 8₂ = 50 degrees and the impeller rotational speed w 1600 rpm. Assume negligible losses, and the design conditions of whirl-free and shock-free entry. The impeller torque is __________ N-m. B₂ I Front View b2. Side View

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 single-stage axial flow pump with outer radius r2 = 0.240 m and inner radius r1=0.120 m is given. At a radius of r =0.090 m, absolute flow flows in from the axial direction just before the impeller inlet and relative flow flows out in the axial direction just after the impeller outlet. Assuming a flow rate Q = 0.265 m^3/s, a water density p = 1.000 x 103 kg/m^3, a rotation speed n = 2.4 x 10^3 rpm, and a gravitational acceleration g = 9.81 m/s^2, and assuming that the theoretical head Hth = W/g (W: specific work) derived from Euler's law is constant at all impeller radii, answer the following questions. (1) Looking at the following image, find all values of the velocity triangle just before the impeller inlet and just after the impeller outlet at radius r =0.09 m. impeller Figure 37.1 A propeller of an axial flow pump a₁ w1 U₁ Outlet guide vane B₁ Impeller α₂ Vw2 U₂=U₂=U
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A pump is used to take water out of a large lake and deliver it to a farm to be used for irrigation. The pump location is illustrated in the figure below, where the suction side of the pump (also called the pump intake) is 3 m above the water surface in the lake and the vertical intake pipe has a diameter of 150 mm. (Discharge side) Pump - >100 L/s P (Suction side) 3m -150 mm Lake Part A Assuming that viscous effects are negligible, what is the pressure on the suction side of the pump when the flow rate through the system is 100 L/s? Express your answer to three significant figures and include appropriate units.
The front and side views of a centrifugal impeller are shown in the figure below. All symbols have their usual meanings. The outer radius of the impeller is r2 = 0.4 m and the blade height at the impeller outlet b2 = 0.02 m. The volume flow rate of water (density = 1000 kg/m³) through the impeller is 0.3 m³/s. The outlet blade angle 3₂ = 31 degrees and the impeller rotational speed w = 1400 rpm. Assume negligible losses, and the design conditions of whirl-free and shock-free entry. The impeller power is ß₂ kW. Front View ra @ b2- → Side View
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Draw a velocity triangle as shown in the figure in question. The velocity triangle immediately after the impeller exit is also required.
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