What are the parts of a 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 …
What are the parts of turbine?
The turbine components to be installed are the tower, nacelle, hub and blades.
What are the 3 types of steam turbine?
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.
How do steam turbine blades work?
In simple terms, a steam turbine works by using a heat source (gas, coal, nuclear, solar) to heat water to extremely high temperatures until it is converted into steam. The potential energy of the steam is thus turned into kinetic energy in the rotating turbine’s blades.
What are the five parts of a turbine?
A wind turbine consists of five major and many auxiliary parts. The major parts are the tower, rotor, nacelle, generator, and foundation or base. Without all of these, a wind turbine cannot function. The foundation is under the ground for the onshore turbines; it cannot be seen because it is covered by soil.
What is rotor in steam turbine?
The steam turbine rotor is the spinning component that has wheels and blades attached to it. The blade is the component that extracts energy from the steam.
What is Casing in steam turbine?
Steam turbines consist essentially of a casing to which stationary blades are fixed on the inside and a rotor carrying moving blades on the periphery. The rotor is fitted inside the casing with the rows of moving blades penetrating between the rows of fixed blades.
What is nozzle in steam turbine?
A steam nozzle is a duct or passage of smoothly varying cross sectional area which converts heat energy of steam into kinetic energy. The shape of the nozzle is designed such that it will perform this conversion of energy with minimum loss.
What is extraction in steam turbine?
Extraction. A third steam turbine type is extraction steam turbines. An extraction turbine has one or more openings in its casing for extraction of a portion of the steam at some intermediate pressure. The extracted steam may be used for process purposes.
What are the 6 parts that make up a wind turbine tower?
Here’s an illustration and simple breakdown of all the features that come together to create a wind turbine.
- Foundation. The foundation for wind turbines is constructed from concrete reinforced with steel.
- Tower.
- Blades.
- Hub.
- Rotor.
- Nacelles.
- Main Shafts and Gearboxes.
- Generators.
The casing contains the rotor and nozzles through which the steam is expanded and directed against the rotating buckets. Rotor: Consists of shaft and disk assemblies with buckets. The shaft extends beyond the casing through the bearing cases. One end of the shaft is used for coupling to the driven pump.
Why are there gears in a steam turbine?
Turning Gears: Large turbines are equipped with turning gears to rotate the rotors slowly during warm-up, cool off. This is to maintain the shaft or rotor at an approximately uniform temperature circumferentially, so as to maintain straightness and preserve the balance.
What are the bearings in a steam turbine?
The bearing cases contain the journal bearings and the rotating oil seals, which prevent outward oil leakage and the entrance of water, dust, and steam. The steam end bearing case contains the rotor positioning bearing and the rotating components of the over speed trip system.
How are diaframs used in a steam turbine?
Diaframs: Stationary diaframs separate the inner stages, contain the interstage nozzles and interstage seals. The nozzle expand the steam and direct it against the following rows of rotating blades. The diaframs are adjusted on assembly to allow for rotor deflection and to assure that the seals are concentric with the shaft.