The steam-electric power station is a power station in which the electric generator is steam driven. Water is heated, turns into steam and spins a steam turbine which drives an electrical generator. … The waste heat from a gas turbine can be used to raise steam, in a combined cycle plant that improves overall efficiency.
What is the principle of operation of steam power plant?
What is the principle of operation of steam power plant? Explanation: The Rankine cycle is an idealized thermodynamic cycle of heat engine. Under this cycle heat energy is converted into mechanical energy while undergoing phase change.
What are the components of a steam power plant?
A steam power plant consists of a boiler, steam turbine and generator, and other auxiliaries. The boiler generates steam at high pressure and high temperature. The steam turbine converts the heat energy of steam into mechanical energy. The generator then converts the mechanical energy into electric power.
What does steam power plant mainly use to generate steam?
Steam in steam turbines • – Water is boiled by nuclear fission or the burning of fossil fuels (coal, natural gas, or petroleum). Some newer plants use the sun as the heat source: solar parabolic troughs and solar power towers concentrate sunlight to heat a heat transfer fluid, which is then used to produce steam.
What are the disadvantages of steam power plant?
Definition, advantages & disadvantages. Components that make up a steam power station.
Power Generation/Steam Power.
|Can be installed anywhere near fuel & water supply||Costs more to run compared with other types of power stations|
|Requires less construction space|
|Cost for Generation is less|
Why is steam used for power generation?
This steam is an important part in electrical generation since it can be used to spin a turbine (which is connected to a generator to create power). … When high pressure steam passes through the turbines it expands and emerges at an increased speed but lower pressure.
What are parts of steam?
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 is the output of steam power plant?
The main steam enthalpy becomes 1,474.1 Btu/lbm and the turbine exhaust enthalpy is 871.0 Btu/lbm. The turbine work output rises to 603.1 Btu/lbm (176.7 MW at 1,000,000 lb/hr steam flow) and the efficiency increases from 40.6 percent to 42.9 percent.
What is the function of a steam in a plant?
The stem’s main role is to hold onto the plant buds, flowers, leaves, and fruits. A stem helps the plants together with the roots, helping them stand up straight and perpendicular to the ground.
What is steam turbine and how it works?
A Steam Turbine is a mechanical device that extracts thermal energy from pressurized steam and transforms it into mechanical work. … 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.
What is the function of steam?
Steam’s capacity to transfer heat is also used in the home: for cooking vegetables, steam cleaning of fabric, carpets and flooring, and for heating buildings. In each case, water is heated in a boiler, and the steam carries the energy to a target object.