What type of steam is used in steam turbines?

Three basic types of steam turbine are used to generate power as a by-product of process or exhaust steamml: condensing, pass-out condensing, and back-pressure.

What is the most common bearing used in steam turbine?

2 Thrust and combined bearings. The thrust bearings used in steam turbines are generally of the tilting-pad type. The possibility of the angle of tilt to vary with load improves the load capacity of the bearing. Generally, two thrust bearings are installed in a front-to-front (Fig.

What are the two parts of steam turbine?

The main parts of a steam turbine are (1) the rotor that carries the blading to convert the thermal energy of the steam into the rotary motion of the shaft, (2) the casing, inside of which the rotor turns, that serves as a pressure vessel for containing the steam (it also accommodates fixed nozzle passages or stator …

Why are rigid coupling is used?

Rigid couplings are used mainly on low speed or low torque applications where the shafts are an identical size and are not subject to misalignment. Applications which use rigid shaft couplings include: Conveyors. Food processing applications.

What are the types of steam?

Types of Steam

• Pressure-Temperature Relationship of Water & Steam.
• Saturated Steam (Dry)
• Unsaturated Steam (Wet)
• Superheated Steam.
• Supercritical Water.
• Various States of Water.

What is the action of steam in a steam turbine?

What is the action of steam in a steam turbine? Explanation: Steam action in a steam turbine is Dynamic. Explanation: The critical pressure gives the velocity of steam at the throat which is equal to the velocity of sound. Explanation: The required degree of reaction will be 0.67.

Which bearing is used in turbines?

Spherical roller bearings are often used in the main shaft of the turbine. It is also common to find a tapered roller bearings (TRB) used in combination with a cylindrical roller bearing (CRB) at this location, said Stephen Curtis, director of Renewable Energy Business.

How many types of turbine bearings are there?

Rolling element, magnetic, and hydrodynamic bearings are the three basic types of thrust bearings used in power generation machinery. Rolling element bearings are incorporated in small-size turbine generators and wind turbines, and magnetic bearings have been used in custom applications.

What are the types of couplings?

Examples of material flexing couplings are jaw, sleeve, tire, disc, grid and diaphragm couplings.

• – Jaw Couplings.
• – Sleeve Coupling.
• – Tire Coupling.
• – Disc Coupling.
• – Diaphragm Coupling.
• – Gear Couplings.
• – Grid Couplings.
• – Roller Chain Coupling.

What is the difference between rigid and flexible couplings?

Rigid couplings provide a rigid connection; the two shafts are firmly connected, and the coupling allows for a smooth transmission of torque throughout the system. Flexible couplings create flexible connections, and the components can lose some of the torque power through the interaction.

What are the 3 types of steam?