Homework Help is Here – Start Your Trial Now!
Engineering
Mechanical Engineering
A double overhung impulse turbine of 85% efficiency is direct-connected to a 30-MW generator of 93% efficiency. Elevation of head water level is 832 m above sea level, elevation of tailwater level is 384 m above sea level, turbine setting is 3.7 m, velocity of flow in penstock is equal to 0.025√2gh, loss of head due to friction is 2% of gross head. Compute: a) Flow in second metre through penstock. b) Flow in second metre through turbine. c) Diameter of jet in mm if nozzle efficiency is 98%. d) Diameter of wheel in metres. e) Rotative speed in rpm if peripheral speed is 0.45√2gh. f) Specific speed of turbine in rpm.

A double overhung impulse turbine of 85% efficiency is direct-connected to a 30-MW generator of 93% efficiency. Elevation of head water level is 832 m above sea level, elevation of tailwater level is 384 m above sea level, turbine setting is 3.7 m, velocity of flow in penstock is equal to 0.025√2gh, loss of head due to friction is 2% of gross head. Compute: a) Flow in second metre through penstock. b) Flow in second metre through turbine. c) Diameter of jet in mm if nozzle efficiency is 98%. d) Diameter of wheel in metres. e) Rotative speed in rpm if peripheral speed is 0.45√2gh. f) Specific speed of turbine in rpm.

Elements Of Electromagnetics
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
icon
Related questions
Question

A double overhung impulse turbine of 85% efficiency is direct-connected to a 30-MW generator of 93% efficiency. Elevation of head water level is 832 m above sea level, elevation of tailwater level is 384 m above sea level, turbine setting is 3.7 m, velocity of flow in penstock is equal to 0.025√2gh, loss of head due to friction is 2% of gross head. Compute:
a) Flow in second metre through penstock.
b) Flow in second metre through turbine.
c) Diameter of jet in mm if nozzle efficiency is 98%.
d) Diameter of wheel in metres.
e) Rotative speed in rpm if peripheral speed is 0.45√2gh.
f) Specific speed of turbine in rpm.

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Applied Fluid Mechanics
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
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY
SEE MORE TEXTBOOKS