APRESENTATION ON SUMMER

TRAINING AT NSPCL, DURGAPURPresented by:

ANIKET SUMAN

INTRODUCTION

• NTPC + SAIL = NSPCL (NTPC - SAIL Power Company Limited)

• Joint their ventures in March 2001• Durgapur, Rourkela & Bhilai• Captive Power Plant• 120 MW of Generation at Durgapur

COAL

Coal55%

Gas10%

Diesel1%

Hydel26%

RES5%

Nuclear3%

Advantages of Coal Fuel:

•Abundantly available in India Semi Bituminous Coal

27000 kJ/kg

•Low cost

•Easy to handle, transport, store

and use

Coal Properties:

• Calorific Value

• Weatherability

• Sulphur Content

• Ash Content

• Grindability Index

• Particle Size

COAL HANDLING PLANT

Water Treatment Plant

DM PLANT

BOILERS

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.

• Also known as air heater; air-heating system but it is kept at a place near by where the air enters in to the boiler.

• The purpose of the air preheater is to recover the heat from the flue gas from the boiler to improve boiler efficiency by burning warm air which increases combustion efficiency, and reducing useful heat lost from the flue.

SUPER HEATER

• A device which removes 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.

COOLING TOWERS

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.

TURBINE AND ALTERNATOR

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

•An alternator takes this mechanical energy as input and gives electrical energy as output.

SWITCHGEAR & PROTECTION

CONTROL UNIT (ROOM)

ThANKS !!