PSCMR COLLEGE OF ENGINEERING & TECHNOLOGYVIJAYAWADA

THERMAL POWER PLANT

PRESENTATION BY:NARENDRA REDDY.B

2ND EEE

CONTENTS: INTRODUCTION POWER PLANT LAYOUT MAIN AND AUXILIARY EQUIPMENTS THERMAL POWER PLANTS IN A.P REFERENCES

INTRODUCTION:

A Thermal Power Plant converts the heat energy of coal into electrical energy. Coal is burnt in a boiler which converts water into steam above its critical for water of 705 °F(374 °C). The expansion of steam in turbine produces mechanical power which drives the alternator coupled to the turbine. Thermal power plant contribute maximum to the generation of power for the country. Thermal power plants constitute 75.43% of the totally installed captive and non-captive power generation in India. In thermal generating stations coal,oil,natural gas etc.., are taken as primary sources of energy.

GENERAL LAYOUT OF THERMAL POWER STATION:

DIAGRAM OF TYPICAL COAL-FIRED THERMAL POWER STATION:

MAIN AND AUXILIARY EQUIPMENTS: 1.Coal handling plant 2.Pulverizing plant 3.Draft Fans 4.Boiler 5.Ash handling plant 6.Turbine 7.Condesor 8.Cooling towers 9.Feed water heater 10.Economiser 11.Super heater and Reheater 12.Air preheater

1.COAL HANDLING PLANT:

2.PULVERIZING PLANT:

In modern thermal power plant, coal is pulverized i.e. ground to dust like size carried to the furnace in a stream of hot air. Pulverising is means of exposing a large surface area to the action of oxygen and consequently helping combustion.

3.DRAFT SYSTEM

4.BOILER: A Boiler is a closed vessel in

which water under pressure, is converted into steam.

It is one of the major components of a thermal power plant.

Always designed to absorb maximum amount of heat released in the process of combustion.

5.Ash handling plant:

6.Turbines:

A steam turbine is a device which extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Sir Charles Parsons in 1884.[1][2]

7.Condensor:

8.Cooling Towers:

9.Feed Water Heater:

By feeding water before boiler improves overall efficiency of plant.

Quantity of steam produced by boiler is increased.

10.Economiser:

11.Super heater and Reheater:

12.Air Preheater:

An Air preheater increases the temperature of air supplied for coal burning.

And it drawn from the flue gases.

Air is drawn from the atmosphere by the force of draft fan.

THERMAL POWER PLANTS IN A.P

Rayalaseema Thermal Power Plant in Kadapa which produces 1650 MW power.

Vijayawada Thermal Power Station in Vijayawada which produces capacity of 1760MW power.

Simhadri Super Thermal Power Plant in Visakhapatnam produces capacity of 2000MW power. It is under Central govt.

Sri Damodaram Sanjeevaiah Thermal Power Station in Krishnapatnam, Nellore produces 1600 MW power.

REFERENCES:

Generation of electric power in POWER SYSTEMS by J.B.GUPTA

www.google.com www.slideshare.net

THANK YOU…!

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