1. In the Francis turbine of the sketch, calculate the magnitude and direction of the relative velocity W1 at the entrance of the runner. Rotating speed n=600 rpm, Inlet diameter D1=2m Guide vane opening v=30°, absolute velocity at the entrance C1=65m/s. Draw the triangle of velocities (vectors) on the figure V

1. In the Francis turbine of the sketch, calculate the magnitude and direction of the relative velocity W1 at the entrance of the runner. Rotating speed n=600 rpm, Inlet diameter D1=2m Guide vane opening v=30°, absolute velocity at the entrance C1=65m/s. Draw the triangle of velocities (vectors) on the figure V

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

See similar textbooks

Similar questions

Question 4 For the figure below, a 1.25-inch diameter jet has a velocity of 86 ft/sec. Calculate the resultant reaction force on the vane made of reinforced poly-carbonate fiberglass plastic and the angle_0 = 110° . Dj 뜨건 Plan view 50 pounds O 100 pounds 150 pounds 200 pounds
A lawn sprinkler can be used as a simple turbine. As shownin Fig. , flow enters normal to the paper in the centerand splits evenly into Q/2 and Vrel leaving each nozzle. Thearms rotate at angular velocity ω and do work on a shaft.Draw the velocity diagram for this turbine. Neglecting friction,find an expression for the power delivered to the shaft.Find the rotation rate for which the power is a maximum.
A fan impeller is 800 mm in diameter and rotates at a constant angular velocity of 600 rpm. Determine the tip speed, i.e. the circumferential velocity, of its blades.
A sink of strength 20 m2/s is situated 3 m upstream of a source of 40 m²/s in a uniform stream. It is found that, at a point 2.5 m from both source and sink, the local velocity is normal to the line joining the source and sink. Find the velocity at this point and the velocity of the uniform stream. Locate any stagnation points and sketch the flow field.
Water steam is running through the nozzle. Inlet pressure is P1=25 bars; T1=300C; V1=90m/s; A1=0.2m2. The exit parameters are: P2=11bars; T2=210C. The mass flow rate is m=2 kg/s. Determine: a.Exit velocity V2=?; b.Inlet and outlet diameters D1 and D2.
Find the velocity к.E =23-55 m = 2. 3К
A 60 degrees bend occurs in a water pipeline that reduces from 600 mm diameter to 300 mm diameter at the bend (inside bend angle 120 degrees). If the gauge pressure at the inlet is 172 kPa, determine the magnitude and angle of the thrust on the bend when the flow is 0.85 m3 /s. Hint: start by calculating the initial and final velocities, then the final pressure. Next, analyse the pressure and momentum forces in the x and y planes.
| The cross-sectional area is 25 square centimeter of water jet under the velocity of 35 meter per second and strikes tangentially a curved plate. The curvature angle of plate at the outlet is 120° with the x-axis. Find the force exerted by the get on the plate in the direction motion. Solve the problem, when the case of the plate is stationary and plate is moving in the direction of jet with the velocity of 15 meter per second.
Q3. A free jet of water with an initial diameter of 2 in strikes the vane as shown in the figure below. Given that = 30 °. and V₁ = 100 ft/s. Owing to the friction losses, assume V₂ = 95 ft/s. Flows occurs in a horizontal plane. Find the resultant force on the blade. V₁ CV Fy F
The water enters the sprinkler nozzles with a flow rate of 50 liters / hour in the vertical axis direction and leaves the sprinkler nozzles as 25mm diameter jets and making θ angle with the tangential direction as shown in the figure. The length of the sprinkler arms is 0.45 m. Without considering friction effects; For θ = 75 °, set the rotational speed in rpm.
How Vt=Vr × sin (70°) ? please provide explanation as fast as possible.