## What is a Rateau stage?

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Rateau Turbine – pressure compounding. A pressure-compounded impulse stage is a row of fixed nozzles followed by a row of moving blades, with multiple stages for compounding. In this type, the total pressure drop of the steam does not take place in the first nozzle ring but is divided up between all the nozzle rings.

### What is Curtis wheel in steam turbine?

A velocity-compounded impulse stage (invented by Curtis and also called a “Curtis wheel”) is a row of fixed nozzles followed by two or more rows of moving blades alternating with rows of fixed blades. This divides the velocity drop across the stage into several smaller drops.

What is turbine used for?

A turbine is a machine that transforms rotational energy from a fluid that is picked up by a rotor system into usable work or energy. Turbines achieve this either through mechanical gearing or electromagnetic induction to produce electricity.

What is a turbine and how does it work?

A turbine is a device that harnesses the kinetic energy of some fluid – such as water, steam, air, or combustion gases – and turns this into the rotational motion of the device itself. Turbines are generally used in electrical generation, engines, and propulsion systems.

## What is Rateau stage of turbine?

The pressure compounded Impulse turbine is also called as Rateau turbine, after its inventor. This is used to solve the problem of high blade velocity in the single-stage impulse turbine. It consists of alternate rings of nozzles and turbine blades.

### What is Curtis turbine?

The Curtis turbine is a compound impulse turbine, the com- pounding being both for pressure and velocity. In an impulse turbine, the internal energy of the steam is first changed into velocity, by expansion in a suitable nozzle, and the jet of steam directed against the moving blades.

What is wheel chamber?

Wheel chamber in case of steam turbine is a chamber provided on HP side of balance piston. It is between fisrt stage , Impilse stage , nrozzle and balance piston. For the same load on the turbine, if wheel chamber pressure increases it indicates turbine fouling so it is by answer.

What causes the turbines to spin?

Wind turbines operate on a simple principle. The energy in the wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which spins a generator to create electricity.

## What is turbine energy?

In a turbine generator, a moving fluid—water, steam, combustion gases, or air—pushes a series of blades mounted on a rotor shaft. The force of the fluid on the blades spins/rotates the rotor shaft of a generator. The generator, in turn, converts the mechanical (kinetic) energy of the rotor to electrical energy.

### What is Delaval Turbine?

De Laval turbine is an impulse turbine, in which steam impinges upon revolving blades from a flared nozzle. The flare of the nozzle causes expansion of the steam, and hence changes its pressure energy into kinetic energy.

What is blade efficiency?

The blade efficiency is the ratio of the work done on the blades to the energy supplied to the fluid.

What is an rota wheel?

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## What is the difference between Rateau and Curtis stages?

A Curtis stage is also used where wheel speed is low and a second row of blades is needed to remove the energy from the steam. Typical Curtis stage blade speeds are in the range of 450 to 650 feet/second while Rateau stages are typically 600 to 800 feet/second.

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What kind of wheels does Rev make?

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