NAME:-Udit Narayan Das

ROLL NO.:- 11901611109

A thermal power station is a power plant in which the prime mover is steam driven.

It works on the RANKINE CYCLE.

Damodar Valley Corporation (DVC) was established in 1948 under an Act of Parliament for unified development of Damodar Valley covering an area of 24,235 sq km in Bihar and West Bengal.

DURGAPUR STEEL THERMAL POWER STATION is a Thermal Power Project of Damodar Valley Corporation (DVC) whose construction, commissioning activity is undertaken by Bharat Heavy Electricals Limited (BHEL).

Coal conveyor

Stoker

Pulveriser

Boiler

Coal ash

Air pre-heater

Electrostatic precipitator

Smoke stack

Turbine

Condenser

Transformers

Cooling towers

Generator

Power House

High voltage power lines

Coal handling plant

Main generating plant

Ash handling plant

Switchyard

CHP handles the coal from its receipt to transferring it to bunkers.

Wagon tipplers are used to unload the coal into underground conveyer belts from where they are transported to penthouse where suspended magnets are used to detect metals.

Crushers are used to crush the coal into small pieces which are then transported to coal storage via coal conveyer.

When the coal is to be used Pulverizer is used to grind the coal into dust.

Here, the burning of coal starts.

it contains various equipments which help in

generation of electric energy.

Pulverized coal is put

in boiler furnance

Boiler is an enclosed

vessel in which water

is heated and

circulated until the

water is turned in to

steam at the required

pressure.

Super-heater: Superheater is a component of a steam-generating unit in which steam, after it has left the boiler drum, is heated above its saturation temperature.

Reheater : Reheater is also steam boiler component in which heat is added to this intermediate-pressure steam, which has given up some of its energy in expansion through the high-pressure turbine.

Condenser : Condensers are heat exchangers which convert steam from its gaseous to its liquid state, also known as phase transition.

Cooling Towers: It is a tower- or building-like device in which atmospheric air (the heat receiver) circulates in direct or indirect contact with warmer water (the heat source) and the water is thereby cooled

Function of

economiser is to

recover some of the

heat from the heat

carried away in the

flue gases up the

chimney and utilize

for heating the feed

water to the boiler.

Air preheater : It is a

device used in steam

boilers to transfer heat

from the flue gases to the

combustion air before the

air enters the furnace.

Smoke stack : A chimney

is a system for venting hot

flue gases or smoke from a

boiler, stove, furnace or

fireplace to the outside

atmosphere.

Extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft.

uses multiple stages in the expansion of the steam.

Converts mechanical energy into electrical energy.

Turbine is coupled with the Turbo generator that normally spins at 3000 rpm in countries with 50 Hz supply frequency

The generated voltage is stepped up in Generator Transformer and the power is evacuated through transmission line feeders.

The main operations are:

Removal of ash from furnace.

Transfer of ash to a fill or storage.

Disposal.

Ash can be disposed of as:

Dry ash system

Ash slurry system

It is a device which removes dust or other finely divided particles from flue gases by charging the particles inductively with an electric field, then attracting them to highly charged collector plates.

Hub of electrical power sources.

Exists in a generating station to coordinate the transfer of power between generators and transmission lines.

It contains current carrying conductors, transformers, circuit breakers etc.

As the population is increasing, the

consumption of power is also increasing.

In order to meet the needs of future

generation, power should be used efficiently.