Coal-fired plants produce electricity by burning coal in a boiler to produce steam. The steam produced, under tremendous pressure, flows into a turbine, which spins a generator to create electricity. The steam is then cooled, condensed back into water and returned to the boiler to start the process over.
How does a coal-fired thermal power station work?
The high-pressure steam turns the blades of a turbine, which is connected by a shaft to a generator. The generator spins and produces electricity. … The condensed water is thus cooled down and then recirculated back through the coal-fired boiler to again turn to steam and power the turbines.
How does a thermal energy power plant work?
Thermal power plants use water as working fluid. … In a thermal power plant a steam turbine is rotated with help of high pressure and high temperature steam and this rotation is transferred to a generator to produce electricity. Steam turbine is the heart of the power plant.
What is the use of coal in thermal power plant?
Nearly 50% of the electricity generated in the world uses coal as the primary fuel. The function of the coal-fired thermal power plant is to convert the energy available in the coal to electricity. Coal power plants work by using several steps to convert stored energy in coal to usable electricity.
Why do coal power plants have cooling towers?
Cooling towers provide an energy efficient and environmentally friendly way of removing heat from this circulating water before it is returned to its source. So while they are so closely identified with nuclear plants, not all nuclear stations use cooling towers, and many non-nuclear plants have them.
How is coal used in a coal power station?
In coal-fired power plants, bituminous coal, subbituminous coal, or lignite is burned. … The heat produced by the combustion of the coal is used to convert water into high-pressure steam, which drives a turbine, which produces electricity.
What are the main parts of thermal power plant?
Principal Components of a Thermal Power Plant
- Boiler (1) A huge boiler acts as a furnace transferring heat from the burning fuel to row upon row of water tubes that entirely surround the flames. …
- Drum (2) …
- High-pressure (HP) Turbine (3) …
- Medium-pressure(MP) turbine (4) …
- Low-pressure(LP) Turbine (5)
How does coal produce electricity step by step?
- the coal is mined and delivered to the coal station.
- the coal is pulverised to make it finer.
- the coal is burned in a furnace.
- the energy is used to boil water.
- the steam turns the turbine.
- the turbine turns a generator which produces electricity.
Why is coal power plant good?
Coal-fired power plants provide affordable, reliable and constant power that is available on demand to meet energy consumption needs. As much of the world lacks access to modern, clean energy, coal is still essential to alleviating worldwide energy poverty.
How much space does a coal power plant take up?
An entire geothermal field uses 1-8 acres per megawatt (MW) versus 5-10 acres per MW for nuclear operations and 19 acres per MW for coal power plants. Coal power plants also require huge acreages for mining their fuel.
How much power does a coal power plant produce?
A standard 500 megawatt coal power plant produces 3.5 billion kWh per year, which is enough energy to power 4 million light bulbs all year. To power most of a household’s electrical appliances for a year it would take around 4,750 pounds of coal.