Answered: A jet of water 100 mm diameter and…

A jet of water 100 mm diameter and having a velocity of 30 m/s strikes tangentially on a wheel which deflects the jet through an angle of 120° Calculate the thrust on the vane when

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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4. A centrifugal pump delivers water to a height of 22 metres at a speed of 800 r.p.m. The velocity of flow is constant at a speed of 2-0 m/s and the outlet vane anglc is 45°. If the pump discharges 225 litres of water per second, find the diameter of the impeller and width of the impcller at oudet. (Ans. 375 mm: 95 mm)
A Francis radial-flow hydroturbine has the following dimensions, where location 2 is the inlet and location 1 is the outlet: r2 = 2.00 m, r1 = 1.30 m, b2 = 0.85 m, and b1 = 2.10 m. The runner blade angles are ?2 = 71.4° and ?1 = 15.3° at the turbine inlet and outlet, respectively. The runner rotates at n. = 160 rpm. The volume flow rate at design conditions is 80.0 m3/s. Irreversible losses are neglected in this preliminary analysis. Calculate the angle ?2 through which the wicket gates should turn the flow, where ?2 is measured from the radial direction at the runner inlet. Calculate the swirl angle ?1, where ?1 is measured from the radial direction at the runner outlet. Does this turbine have forward or reverse swirl? Predict the power output (MW) and required net head (m).
This course A centrifugal pump with the following impeller dimensions is used to pump oil. The pump is running at 2500 rpm. CHide blocks b2 Boz 72 The parameters of the impeller are as follows: 1= 8cm, b1= 4cm, B1= 20° r2= 18cm, b2= 3cm, B2= 25° Take g= 9.81 m/s2 The velocity triangles at the inlet and the outlet are as follows V2 W2 W1 V1 U2 U1 Determine the outlet radial velocity in (m/s) Choose.., + Determine the theoretical head in (m) Choose.. Determine the volumetric flow rate in m/s Choose. 42 128 AM ENG A/23/2021
The dimensions of a Francis radial-flow hydroturbine are r2 = 2.00 m, r1 = 1.30 m, b2 = 0.85 m, and b1 = 2.10 m, where location 2 is the inlet and location 1 is the outlet. At the turbine inlet and outflow, the runner blade angles are β2 = 71.4° and β1 = 15.3°, respectively. The runner rotates at a rate of ń = 160 rpm. At design conditions, the volume flow rate is 80.0 m3 /s
The dimensions of a Francis radial-flow hydroturbine are r2 = 2.00 m, r1 = 1.30 m, b2 = 0.85 m, and b1 = 2.10 m, where location 2 is the inlet and location 1 is the outlet. At the turbine inlet and outflow, the runner blade angles are β2 = 71.4° and β1 = 15.3°, respectively. The runner rotates at a rate of ń = 160 rpm. At design conditions, the volume flow rate is 80.0 m3 /s. (a) State the necessary assumptions and calculate the angle α2 at which the wicket gates should turn the flow (Figure Q1), with α2 measured from the radial direction at the runner inlet. (b) Calculate the swirl angle α1 (Figure Q1), where α1 is the angle measured from the radial direction at the runner output. (c) Calculate the needed net head and power output. (d) Discuss the actual power output and head required for actual case of the turbine (irreversibility not neglected). (Properties For water at 20oC, ρ = 998.0 kg/m3)
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a "all KOREK اسئلة امتحان ف. . . Q): Impulse turbine diameter = 3.2m O = 0 Angular velocity = 25 rad/s Absolute velocities V, = 140m/s and V, = 110m/s Power developed by the wheel = 300kw Calculate: Jet 25mmd 1. dhe blade velocity. 2. the force exerted and 3. the angle e. Q2): Consider flow of an incompressible fluid of density p and viscosity u through a long, horizontal section of round pipe of diameter D. The velocity profile is V. A surface tension o. Develop a non-dimensional relationship between surface tension o and the other parameters in the problem. Q3): When crude oil (r.d = 0.855, u = 71.8*104 Pa. s) flows in a 50 mm horizontal pipeline at 4.5 m/s, a pressure drops of 6500 kPa occurs in 60 m of pipe. Calculate the pressure drop in the corresponding length of a pipe model 25 mmd when gasoline (r.d = 0.68, u = 2.9*10+ Pa. s) flows in the model for complete similarity between model and prototype.