What is the difference between Francis Pelton and Kaplan turbine?
The basic difference between Pelton, Francis and Kaplan Turbines is explained in this article. Francis Turbine is an inward flow reaction turbine. Kaplan turbine is a propeller type reaction turbine. The Kaplan Turbine uses both kinetic and potential energy, which then is converted into mechanical energy.
Which type of turbine is Kaplan turbine?
propeller hydro turbine
A Kaplan turbine is a type of propeller hydro turbine (specifically a reaction turbine) used in hydroelectric plants. Water flows both in and out of Kaplan turbines along its rotational axis (axial flow).
Which type of turbine is Francis turbine?
inward-flow reaction turbine
The Francis turbine is a type of water turbine. It is an inward-flow reaction turbine that combines radial and axial flow concepts. Francis turbines are the most common water turbine in use today, and can achieve over 95% efficiency.
Why are Francis and Kaplan turbine called reaction turbine?
The Francis turbine is a reaction turbine, which means that the working fluid changes pressure as it moves through the turbine, giving up its energy. A casement is needed to contain the water flow. The inlet is spiral shaped. Guide vanes direct the water tangentially to the runner.
Is Kaplan a turbine impulse?
Pelton wheel is an impulse turbine where static pressure head of water is converted into mechanical energy. On the other hand, Francis and Kaplan’s turbines are reaction turbines where dynamic pressure head of water is converted into mechanical energy.
What is the use of Kaplan turbine?
Kaplan turbines are widely used throughout the world for electrical power production. They cover the lowest head hydro sites and are especially suited for high flow conditions.
Is Kaplan mixed flow turbine?
Concept: If the water flows parallel to the axis of rotation of the shaft, the turbine is known as an axial flow turbine. For the axial flow reaction turbine, the shaft of the turbine is vertical. Kaplan turbine is a low head axial flow turbine with adjustable vane.
What type of turbine is Kaplan Mcq?
Explanation: The Kaplan turbine is an axial flow reaction turbine.
Which type of turbine is Pelton turbine?
impulse turbine
A Pelton turbine or Pelton wheel is a type of hydro turbine (specifically an impulse turbine) used frequently in hydroelectric plants. These turbines are generally used for sites with heads greater than 300 meters. This type of turbine was created during the gold rush in 1880 by Lester Pelton.
Is Kaplan turbine axial or radial?
A large bulb is centered in the water pipe which holds the generator, wicket gate and runner. Tubular turbines are a fully axial design, whereas Kaplan turbines have a radial wicket gate.