Power plant ppt on kalisindh by vikas

SUBMITTED TO :-

ANJALI GUPTA SUBMITTED BY:- VIKAS GUPTA EN “VII” sem.

1113321121

NOIDA INSTITUTE OF ENGINEERING AND TECHNOLOGY

TECHNICAL PRESENTATION ON THERMAL POWER PLANT

Kalisindh Thermal Power Station (KaTPP) is located in  Jhalawar district, Rajasthan state in western India

KaTPP has installed capacityof 1200 MW. It has 2 units on coal based --- 600 x 2 = 1200 MW Source of water for the plant is from

Kalisindh Dam near village Bhanwarasi . And coal for the plant will be sourced from

Paras east and Kanta basin coal blocks in Chhatisgarh state.

INTRODUCTION

OPERATION OF THERMAL POWER PLANT

The coal is brought and crushed to powder. This is feed to boiler for producing heat .

In Boiler the water is converted to steam. In super heater the moisture content is removed from the steam and

that steam is called super heated steam. The superheated steam rotates the shaft of the High pressure turbine. The exhausted steam is sent to preheater and the steam then rotates

the intermediate pressure (IP) turbine. The steam from the IP Turbine is then feed to low pressure turbine. The turbine shaft is connected to the Generator, which produceselectric

Power. The power generated is then transmitted .

OPERATION MECHANISM

Raw coal wagon – Coal is brought to the site through a wagon as per the requirement.

Wagon tippler – The coal is unloaded from the wagon and is transported to crusher and for storage place through conveyor.

Junction tower - JTs are used where the conveyor has any angular deviation.

Primary crusher – The raw coal is crushed into fine pieces of 45mm grit.

The stone and unwanted coal

are rejected

COAL HANDLING PLANT

Secondary crusher – The fine pieces of coal is crushed into powder . (25 mm grit).

Junction Tower- It is a tower where both bunker and crusher are connected with each other.

Mill Bunker – The 25 mm grit coal is crushed into very fine powder for feeding the boiler.

Boiler

Stack & Reclaimer – It is used to store the powdered coal

for emergency purpose.

Atmospheric air –Through

FD fan

A boiler or steam generator is a closed vessel to 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.

BOILER

A device which moves last traces of moisture.

It helps in reduction in requirement of steam quantity.

Steam being dry reduces the mechanical resistance of turbine.

No corrosion at the Turbine blades.

SUPER HEATER

• Which condenses the steam at the exhaust of turbine.

• It creates a very low pressure at the exhaust of turbine, this helps in converting heat energy of steam into mechanical energy in the prime mover.

• The condensed steam can be used as feed water to the boiler.

CONDENSER

A steam turbine is a mechanical device that extracts thermal energy from pressurized steam, and converts it into mechanical energy.

About 86% of all electric generation in the world is by use of steam turbines.

In a thermal power plant generally 3 turbines are used to increase the efficiency.

High Pressure Turbine(HPT): The superheated steam is directly fed to this turbine to rotate it.

Intermediate Pressure Turbine (IPT) : The output from the HPT is reheated in a reheater and used to rotate IPT.

Low Pressure Turbine (LPT) : The Exhausted steam from the IPT is directly fed to rotate the shaft of LPT

All the turbines are connected to a single shaft which is connected to the generator.

PRIME MOVER (TURBINE)

HIGH PRESSURE TURBINE (HPT)

INTERMEDIATE PRESSURE TURBINE (IPT)

LOW PRESSURE TURBINE (LPT)

The Synchronus Generator is used to generate power by connecting the shaft of the Turbine to the shaft of the generator which create the magnetic flux producing Emf.

The generated voltage will generally 33 KV to 11 KV max.

the generated Voltage is stepped up by connecting Step up transformer and is also used for auxilliary purpose.

GENERATOR

Remove heat from the water discharged from the condenser so that the water can be discharged to the river or re circulated and reused.

• Air can be circulated in the cooling towers through natural draft and mechanical draft.

COOLING TOWER

A switchyard is a part of an electrical generation, transmission system. Switchyard transform voltage from high to low’ or the reverse.

SWITCH YARD

1. Oil Natural Air Natural (ONAN)

Oil and air flows naturally. 

2. Oil Natural Air Forced (ONAF) 

As natural air is not so efficient to cool down the oil and bring it to safe limits. So air is forced on the radiating fins with help of fans installed below the radiator fins. 

3. Oil Forced Air forced (OFAF)  With further increase in load, more heat is

generated which necessitates forced cooling of oil.

Types of cooling

TRANSFORMER COLLING