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An impulse turbine is a turbine that is driven by high velocity jets of water or steam from a nozzle directed on to vanes or buckets attached to a wheel. The resulting impulse (as described by Newton's second law of motion) spins the turbine and removes kinetic energy from the fluid flow.

Which turbine is impulse turbine?
One definition of an impulse turbine is that there is no change in pressure across the runner. In practice, the most common impulse turbine is the Pelton wheel shown in the figure below. Its rotor consists of a circular disc with several “buckets” evenly spaced around its periphery

What is the difference between an impulse and reaction turbine?
The main difference between the impulse turbine and the reaction turbine is that, in the former, there is a pressure drop across the fixed blades only, whereas in the latter, there is a pressure drop across both the fixed and the moving blades.

Why it is called impulse turbine?
Unlike other types of turbines which are reaction turbines, the Pelton turbine is known as an impulse turbine. This simply means that instead of moving as a result of a reaction force, water creates some impulse on the turbine to get it to move.

What are four types of turbines?
The 4 types of turbines are-
Water turbines.
Steam turbines.
Gas turbines &
Wind turbines.

Which turbine has highest speed?
Francis turbine
Which turbine has highest speed? Explanation: Francis turbine has a specific speed of 60 to 300 rpm. Specific speed of Pelton turbine is lowest. Speed of Kaplan turbine is 2 to 3 times more than that of Francis turbine.

What is the principle of impulse turbine?
Impulse turbine works on the basic principle of impulse. When the jet of water strikes at the turbine blade with full of its speed, it generates a large force which used to rotate the turbine. The force is depends on the time interval and velocity of jet strikes the blades

Which turbine is used for high head?
impulse turbine
An impulse turbine is generally suitable for high head, low flow applications.

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