Construction of hydraulic turbines
Mechanical Engineering (MCQ) questions and answers
Q. Which of the following hydraulic turbines has a construction given in diagram below?
- Published on 16 Sep 15
ANSWER: Pelton turbine
Fluid Mechanics (
Manufacturing Processes - 1 (
Manufacturing Processes - 2 (
Material Science (
Theory of Machines - 1 (
Metrology and Quality Control (
Theory of Machines - 2 (
Heat Transfer (
Hydraulics & Pneumatics (
Basic Mechanical Engineering (
Dynamics of Machinery (
Engineering Metallurgy (
Design of Machine Elements - 1 (
Turbo Machines (
Mechanical System Design (
Engineering Mechanics (
Strength of Materials (
Design of Machine Elements - 2 (
-Posted on 07 Oct 15
The diagram shown above is of Pelton turbine.
As shown in the diagram, the nozzle directs a high-speed stream of water against the buckets or impulse blades. These are mounted on the circumference of runner.
As Pelton turbine is an impulse type of turbine, it works on the principle of impulse. The momentum of water jet is transferred to the turbine through the runner or wheel. Therefore the work is done by the impulse energy on the turbine in pelton wheel.
Pelton wheels have only one turbine stage, because of the use of liquid fluids which are incompressible.
Pelton turbines are best applicable when the available water head is relatively high. In this situation, Pelton turbines are more efficient.
Post your comment / Share knowledge
Enter the code shown above:
(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)