[2] In a vertical-shaft Francis turbine the available head at the inlet flange of the turbine is 170 m and the vertical distance between the runner and the tailrace is 2.0 m. The runner tip speed is 37 m/s, the meridional velocity of the water through the runner is constant and equal to 11.5 m/s, the flow leaves the runner without whirl and the velocity at exit from the draft tube is 3.7 m/s. The hydraulic energy losses estimated for the turbine are as follows: AHN = 6.0 m, A HR= 10.0 m, AHDT = 1.0 m. Determine (i) the pressure head relative to the tailrace at inlet to the runner; (ii) the flow angles at runner inlet and at guide vane exit; (iii) the hydraulic efficiency of the turbine. If the flow discharged by the turbine is 22 m/s and the power specific speed of the turbine is 0.9 (rad), determine the speed of rotation and the diameter of the runner.

[2] In a vertical-shaft Francis turbine the available head at the inlet flange of the turbine is 170 m and the vertical distance between the runner and the tailrace is 2.0 m. The runner tip speed is 37 m/s, the meridional velocity of the water through the runner is constant and equal to 11.5 m/s, the flow leaves the runner without whirl and the velocity at exit from the draft tube is 3.7 m/s. The hydraulic energy losses estimated for the turbine are as follows: AHN = 6.0 m, A HR= 10.0 m, AHDT = 1.0 m. Determine (i) the pressure head relative to the tailrace at inlet to the runner; (ii) the flow angles at runner inlet and at guide vane exit; (iii) the hydraulic efficiency of the turbine. If the flow discharged by the turbine is 22 m/s and the power specific speed of the turbine is 0.9 (rad), determine the speed of rotation and the diameter of the runner.

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

Related questions

Q: The figure shows a cross section of a conventional loudspeaker. A voice coil (driven by the audio…

A: Given Data The magnetic field intensity is:H=4×104 A/m The length of the permanent magnet is:lm=25…

Q: Which of the following is true for crystallographic points, directions, and planes. To indicate a…

A: Crystallography: Crystallography is the branch of science that deals with the study of crystals and…

Q: The 20-N lamp is supported by the cables shown. [6] Calculate the tension in AC. (ANSWER: 24.74 N)…

Q: Consider a pond whose energy budget is dominated by radiation. The pond is disk-shaped, with a…

A: The emissivity, ε, of the outer layer of a material is its viability in discharging energy as warm…

Q: 4. Within a cubic unit cell,. (a) [710]. (e) [11]. (b) (721). [722]. (c) [0] 2). [123]. (d) [133].…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: 4: A rod of length L. coincides with the interval [0, L] on the x-axis. Let u(x, t) be the…

Q: Prob. # 4] Three identical springs (Figure P4), each of stiffness k = 60 lb/t, support a block of…

Q: i[71] [54] k[22] Define the unit vector between the 2 points in the form of (#i,#j,#k) (Round to two…

Q: Draw the complete shearing force and bending moment diagrams for the beam shown in figure Fig.-1.…

Q: [cos(255°) -sin (255°) 250] = sin (255°) [20] [249.6* Praya = Terans X Praya cos (255°) –20.6 %3D

A: The solution is given below -

Q: A rigid bar ACDB is pinned at end A and supported by vertical wires of the same material (E-210GPa)…

A: P= 10 KNc=0.8m , d= 2.4m L=3.0melastic modulus E= 210 GP across section A= 80mm2coeffiicient of…

Q: PROBLEM 2: The 20-N lamp is supported by the cables shown. [4] Calculate the tension in CD.…

A: According to our guidelines, we are supposed to answer the first three sub parts. Please repost…

Q: What is the concept of ALARP? Give an example of a situation where the ALARP principle is applied.…

A: In this problem, we have to discuss the concept of ALARP with an example.

Q: Calculate the center of mass of a 4 m long aluminum bar with cross- sectional area of 4 cm x 4 cm if…

A: Draw the diagram of bar.

Q: A horizontal tube 6 m long and 123.5 cm in diameter is maintained at a temperature of 150 °C in a…

A: Length of the pipe, L=6 mPipe diameter, d=123.5 cm=0.1235 mPipe temperature, Ts=150oC=150+273=423…

Q: Design and manufacture of plastic and composite parts The tank shown in Figure 1 is stacked as…

A: Step 1: Step 2: Step 3: Step 4:

Q: Derive the basic mechanics solutions for the hoop stress (Subscript[\[Sigma], \[Theta]]) and the…

A: However, I can provide you with the general approach and the governing equations to get you…

Q: Fish are hung on a spring scale to determine their mass. [Select] What is the force constant of the…

Concept explainers

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

100%

Problem [2]

[2] In a vertical-shaft Francis turbine the available head at the inlet flange of the turbine is 170 m
and the vertical distance between the runner and the tailrace is 2.0 m. The runner tip speed is 37
m/s, the meridional velocity of the water through the runner is constant and equal to 11.5 m/s,
the flow leaves the runner without whirl and the velocity at exit from the draft tube is 3.7 m/s.
The hydraulic energy losses estimated for the turbine are as follows:
AHN = 6.0 m, AHR = 10.0 m, AHOT = 1.0 m.
Determine (i) the pressure head relative to the tailrace at inlet to the runner; (ii) the flow angles
at runner inlet and at guide vane exit; (iii) the hydraulic efficiency of the turbine.
If the flow discharged by the turbine is 22 m/s and the power specific speed of the turbine is 0.9
(rad), determine the speed of rotation and the diameter of the runner.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Trending now

This is a popular solution!

Step by step

Solved in 7 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

What are the Rotational / Translation Motion equations ?
PROBLEM 3: A pole AB is being lifted using cables BC and BD. The pole is tilted at an angle of 60⁰ from the horizontal (from xy-plane) and the tensions in BC and BD are 26.1 and 11.3 kN, respectively. [7] Determine the coordinates of B. Answer format: (x, y, z) (ANSWER: 6.00, 0.00, 10.39 m) [8] Calculate the magnitude of the resultant of the two tensions BC and BD acting at B. (ANSWER: 36.04 KN) [9] Calculate the directional angle of the resultant of tensions BC and BD acting at B with respect to the z-axis (γ). (ANSWER: 135.969⁰) and with respect to the y-axis (β). (ANSWER: 103.611⁰).
You are learning to play the violin. One end of the string is vibrating from the bow running along one end. The other end is tied down. The length of the string we will be looking at is 30 cm and the total mass of the string is 0,32 g. We will be modeling this as a standing wave on a string. You being to play the violin and play a note which has a frequency of 440 Hz. You (having incredible eyesight) see that there are 3 anti-nodes on the string forming a perfect sinusoidal wave (shown in diagram). L i) What is the wavelength of this standing wave? ii) What is the speed of the traveling waves that make up this standing wave? iii) What is the tension of the string? iv) Suppose you increase the tension of the string until you get a new standing wave. Will this standing wave have two antinodes or four antinodes? Explain. (You are still at a frequency of 440 Hz)
(Solid Mechanics) Explain why 2D transformation can be represented with a Mohr’s circle?
QUESTION 1 In a 2D world, transformation A is a reflection about y-axis, and transformation B is rotation of 30 degrees. What is going to be the first row of the transformation that is A then B? O [0.866, 0.5] O [0.866, -0.5] O [-0.866, -0.5] O [-0.866, 0.5]