Want this question answered?
duno? U?
The inward flow reaction turbine having radial discharge at outlet is called Francis turbine
A diagram of an impulse turbine is in related links.
1) Impulse turbine 2) reaction turbine
A two stage impulse contains 2 stages. One stage is a stator and rotor, therefore a 2 stage impulse turbine contains a stator-rotor-stator-rotor.
Water is blasted at the buckets one by one or more jets mounted in the surroundings casing. Momentum is transferred from water to buckets and a torque is created, causing the wheel to rotate. That's why it is an impulse turbine.
In an impulse turbine, the stage is a set of moving blades behind the nozzle. In a reaction turbine, each row of blades is called a "stage." A single Curtis stage may consist of two or more rows of moving blades.
Basically governing of a turbine is controlling the speed of the turbine as the load keeps varying. The turbine needs to rotate at a constant speed. The governing of an impulse turbine is done by varying the jet of water that hits the buckets of the runner. This is done by using a spear arrangement in the pen stock. A pen stock is a type of pipe that provides the jet of water.
Advantages and Disadvantages of equity
advantages and disadvantages
advantages and disadvantages of recession
what are the disadvantages and advantages of antipyretic