09-04-2012, 04:37 PM
ENERGY CONVERSION IN THERMAL POWER PLANT
INDUSTRIAL TRAINING IN NTPC DADRI.pptx (Size: 336.25 KB / Downloads: 105)
Some Best features of the plant
It has a unique feature of being three in one unit as it has 2 coal based stations & one gas based station.
It has largest dry ash disposal system
Unique storage of ash by constructing ash mound & converting it to green belt by diverse species of plantation
It has countries largest 4500 MW switch yard.
Coal Based Units
There are two coal based units having total capacity of 1820(840+980) MW Electricity
The main source of coal is North Karanpura.
MAT branch canel supplies the water in the plant
Dry Ash Disposal system is used in the coal based units
The electricity supplied in Delhi & U.P.
BOILER SPECIFICATIONS
Manufacturer- BHEL
Type- Natural circulation, Balanced Draft Double Pass, Single Drum, Pulverized Coal, Dry bottom type
Rated Steam Flow- 700 ton/hrs
Cooling Water & Chimney
Cooling Water Source- MAT Branch Canel
Method- Closed cycle with natural cooling tower
Consumption 50 Cusecs
Generator Specifications
Manufacurer- BHEL
Type- THW-201-2, two pole, cylindrical, steam turbine driver
MW Rating- 210
Rated terminal Voltage- 16.5 KV
Rated Current- 8645 Amp
Rated Speed- 3000 Rpm
Coolings- 1. Stator winding- directly water cooled
2. Stator Core & Rotor- Directly Hydrogen Cooled
GAS BASED UNIT
There is one gas based unit in dadri plant
Its capacity is 829.78 MW
Natural gas is used as a fuel in the unit
H.B.J. Pipelline is the main source of gas
MAT Branch canel supplies water
Electricity is supplied in Delhi, U.P., H.P., J&K, Railways Punjab, Uttranchal
GENERATOR (STEAM TURBINE)
Maker- Siemens, Germany
Active power- 132.4 MW
Current- 9101 Amp
Voltage- 10.5 KV
WATER HEAT RECOVERY BOILER
Maker- BHEL Trichy
Type- vertical forced circulation dual support, top supported