What is the application of impulse turbine?
Applications. It is used worldwide to produce electrical energy in a number of hydro-power plants. Turbochargers in automobiles uses the pressure energy of exhaust gases through impulse turbine. Where hot and pressurized gases coming out of exhaust are converted into high velocity jet by passing them through nozzle.
What is impulse turbine with example?
Impulse Turbine: If at the inlet of the turbine, the energy available is only kinetic energy, the turbine is known as impulse turbine. Example: Pelton wheel turbine.
What are the 2 types of impulse turbine?
The two main types of impulse turbine are Pelton and cross-flow turbines. The Pelton turbine was invented by American inventor Lester Allan Pelton in the 1870s, A Pelton wheel has one or more free jets discharging water into an aerated space and impinging on the buckets of a runner.
What is working principle of impulse turbine?
Impulse turbine work on the principle of Newton’s second law as the resulting change in momentum sets buckets and wheel into rotary motion and thus mechanical energy is made available at the turbine shaft. The fluid jet leaves the runner with a reduced energy.
Which is an important component of an impulse turbine?
Nozzles and blades are the major components of an impulse turbine. The impulse turbine has multiple static nozzles that convert the pressure of the water jet into kinetic energy.
Which one of the following is the best example of impulse turbine?
Which of the following is an example of impulse turbine? Explanation: Pelton Wheel Turbine is an example of impulse Turbine.
What is difference between impulse turbine and reaction turbine?
The basic difference between impulse and reaction turbine is that in impulse turbine steam flows through the nozzle, while in reaction turbine Steam flows initially from guide mechanism and then from moving blades.
Why nozzle is used in impulse turbine?
The nozzles are used to increase the kinetic energy of the water and to spray water to the blades of the turbine. This nozzle forms a jet with high velocity. This indicates the flow of water towards the blade in a particular direction. In an impulse turbine, single or multiple nozzles may be used.
What is the function of the nozzle in an impulse turbine?
Nozzle. The nozzle is installed to adjust and jet the fluid flow to strike the buckets. As mentioned earlier, it is the only part of the impulse turbine assembly that the pressure changes and the flow head are converted into kinetic energy.
What is the working principle of impulse turbine?
In an impulse turbine, water is passed at high velocity (thus high kinetic energy) through a nozzle and focused on the turbine blades, causing them to rotate. Impulse turbines are like a pinwheel. As water hits the blade of the turbine, called a runner, the blade is pushed.
What are impulse turbine blades?
An Impulse turbine blades are usually bucket in shape. The impulse turbine acts on the impulsive force during the striking of the water jet to the turbine blades. It is also known as a tangential flow turbine because the water strikes the blades tangentially.
What is casing of an impulse turbine?
Casing of an impulse turbine is a preventive shielding over the turbine, usually made of cast iron. It also prevents the water from splashing, and also guides it to the spill way. You Should Know? When we say impulse turbine, we are looking at all the turbines using the impulse action of water to generate power.
What is the function of nozzle and spear in impulse turbine?
Nozzle directs the flow of water to the buckets, with an increased velocity coming from a high head. Spear is a conical structure which is moved in and out of nozzle to regulate the flow of water striking the buckets. 4. Casing Casing of an impulse turbine is a preventive shielding over the turbine, usually made of cast iron.