What are the four processes in a steam turbine driven?
Steam supply and exhaust conditions Turbine types include condensing, non-condensing, reheat, extracting and induction.
What is steam turbine and how it works?
As the name implies, a steam turbine is powered by steam. As hot, gaseous steam flows past the turbine’ spinning blades, steam expands and cools, giving off most of the energy it contains. This steam spins the blades continuously. The blades thus convert most of the steam’s potential energy into kinetic energy.
How a steam turbine is constructed?
A steam turbine consists of a rotor resting on bearings and enclosed in a cylindrical casing. The rotor is turned by steam impinging against attached vanes or blades on which it exerts a force in the tangential direction.
How is steam converted into energy?
Making electricity from steam is generally a three step process, where water is converted to high pressure steam, then the high pressure steam is converted to mechanical rotation of a turbine shaft, and the rotating turbine shaft then drives an electric generator.
How a steam turbine generates electricity?
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.
How many stages are there in steam turbine?
In modern turbines, three types of staging are employed, either separately or in combination: (1) pressure (or impulse) staging, (2) reaction staging, and (3) velocity-compound staging.
What are the main components of steam turbine?
But here we will focus only on 5 main parts of the steam turbine.
- Rotor. Steam turbines are fixed on a casing and a rotor attached with moving blades.
- Casing. Casing is required to protect the steam turbine from steam leakage.
- Speed regulator. The speed regulator regulates the overall turbine speed.
- Support system.
- Governor.
What is steam energy called?
Water is heated to steam in power plants, and the pressurized steam drives turbines that produce electrical current. The thermal energy of steam is thus converted to mechanical energy, which in turn is converted into…
Which cycle is used for steam power plant?
Rankine cycles
The steam power stations run on Rankine cycles using steam as a working fluid. The simple ideal Rankine cycle is in fact the most basic vapor power cycle.