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1. A
PRACTICAL TRAINING SEMINAR
ON
“DHOLPUR COMBINED CYCLE POWER PROJECT”
(01/06/2014 to 30/06/2014)
Submitted in Partial Fulfillment for the Award of
Bachelor of Technology Degree
Of
Rajasthan Technical University, Kota
SESSION:-2014-15
Submitted To: Submitted By:
Mr. Brijraj Singh RAJESH KUMAR
(Asst. Prof, EIC Department) 4th year (E.I.C)
DEPARTMENT OF ELECTRONIC INSTRUMENTATION & CONTROL ENGINEERING
POORNIMA COLLEGE OF ENGINEERING
Jaipur
Thursday, October 30, 2014 PCE/EIC/11/010 1

2. CONTENTS
 BACKGROUND OF THE COMPANY
 INTRODUCTION
WHY DHOLPUR IS CONSIDERED
 HOW DOES A COMBINED CYCLE PLANT WORK ?
 GAS TURBINE
 HEAT RECOVERY STEAM GENERATOR
 STEAM TURBINE
WHY USE THIS TECHNIQUE
 CONCLUSTION
 THANK YOU
 QUERIES..??
Thursday, October 30, 2014 PCE/EIC/11/010 2

3. BACKGROUND OF THE COMPANY
Setup- 2007
Location- 55 km. south west Of Agra,pachganv road,dholpur.
Area- 143 Bigha
Estimated cost - Rs. 1100 Crores.
Project Owner- Rajasthan Rajya Vidyut Utpadan Nigam Ltd.
Planning Authority-Central Electricity Authority
Engineering Design-Bharat Heavy Electricals Ltd.
Fuel Supplier- ONGC
Fuel Transporter- GAIL
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4. INTRODUCTION
DCCPP Is Generated 330 MW Electricity.
The Main Equipments Were Supplied By Bhel
The Power Plant Is Operated By The
Rajasthan Rajya Vidyut Utpadan Nigam Ltd.
The Main Fuel Used For This Plant Is Natural
Gas Which Will Be Supplied By Gail.
Less Pollution as thermal power plant.
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5. WHY DHOLPUR IS CONSIDERED
AS IDEAL LOCATION FOR SETUP OF
GAS POWER PLANT?
• AVAILIBILITY OF LAND AND WATER
• TRANSMISSION NETWORK, PROXIMITY TO BROAD
GAUGE RAILWAY
• WELL CONNECTED BY ROADS (G.T. ROAD PASSES
THROUGH THIS CITY)
• AN IMPORTANT LOAD CENTER FOR EASTERN
RAJASTHAN.
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6. UNITS CONFIGURATION
 Totall Station Capacity 330MW.
TYPE OF TURBINE GENERATE
GAS TURBINE -1 110MW
GAS TURBINE-2 110MW
STEAM TURBINE 110MW
TOTAL CAPACITY - 330 MW
Thursday, October 30, 2014 PCE/EIC/11/010 6

7. 7
How does a Combined Cycle
Plant Work?
Thursday, October 30, 2014 PCE/EIC/11/010 7

8. GAS TURBINE
 A gas turbine, also called a combustion
turbine, is a rotary engine that extracts energy
from a flow of hot gas Produced by combustion
of gas in a stream of compressed air.
 Temp of GT is 1390deg-c(approx.).
 In this shaft speed is 3000 rpm.
 Gas turbine arranged on common shaft with
compressor and a generator.
 Overall Efficiency of Gas turbine is 20%-40%.
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9. 9
Combustion Turbine Fuels
• Conventional Fuels
– Natural Gas
– Liquid Fuel Oil
• Nonconventional Fuels
– Crude Oil
– Refinery Gas
– Propane
• Synthetic Fuels
– Chemical Process
– Physical Process
Thursday, October 30, 2014 PCE/EIC/11/010 9

10. Types Of Gas Turbine Plants
• Simple Cycle
– Operate When Demand is High
– Operate for Short / Variable Times
– Designed for Quick Start-Up
– Not designed to be Efficient(max~44%) but Reliable
• Combined Cycle
– Operate for Peak and Economic Dispatch
– Designed for Quick Start-Up
– Designed to Efficient(~60%), Cost-Effective Operation
– Typically Has Ability to Operate in SC Mode
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11. GAS TURBINE - A HEAT ENGINE
Air Intake System.
Compressor.
Combustion Chamber.
Turbine.
Generator.
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12. 12
Typical Plant Components
Oil System Generator
Fire Protection
Starting Engine
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13. Energy Efficiency of the Gas Turbine
Combined Cycle Power Generation System
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14. WASTE HEAT RECOVERY
STEAM GENERATOR
 It is a heat exchanger that recovers
heat from a hot gas stream.
 There are two boiler drums in
WHRSG.
 Water comes in economizer and
temperature of water increased.
 Water supplied to boiler drum then
evaporator in this water is converted
into steam.
 Steam pass through super heaters.
 Dry steam is supplied to boiler
drum. Then steam turbine.
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15. STEAM TURBINE
In Steam Turbine shaft is rotated steadily
by impact reaction of steam as working
substances on blades of turbine.
It converts potential energy or heat energy
into mechanical energy.
It works on Rankine Cycle.
Steam turbine is started by burnt exhaust
gases coming out from gas turbine.
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16. WORKING OF STEAM TURBINE
BOILER STEAM
TRBINE
WATER
AIR
FUEL
STEAM
WASTE
GASES
MECHANICAL
ENERGY
ELECTRICAL
ENERGY
BUS BARS
ALTERNATOR
EXHAUST
STEAM
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17. Steam generating plant
1) Air Preheater:
Increases the temperature of the
air supplied for Fuel burning by
deriving heat from flue gases.
Air is drawn from the atm by
a forced drought fan and is
passed through air preheater
before supplying to the boiler furnace.
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18. Steam Generating Plant
2) Economiser:
It’s essentially a feed
water heater and
derives heat from the
flue gases
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19. Steam generating plant
3) Boiler: The heat of
combustion in the boiler
is utilized to convert
water into steam at
high temperature and
pressure
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20. Steam generating plant
4) Superheater:
The steam produced
in boiler is wet and
is passed through
a superheater where
it is dried and
superheated.
Increases efficiency
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21. Steam generating plant
5) Alternator:
• Steam turbine is coupled to an alternator
which converts the mechanical energy to
electrical energy
• The electrical output of the alternator is
delivered to the bus bars through transformer,
circuit breakers and isolators.
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22. STEAM TURBINE
STEAM
TURBINE
MECHANICAL ENERGY
GENERATOR
ELECTRICAL ENERGY
For 110 MW UNIT
 Rated o/p - 110MW
 Economic o/p - 95MW
 Rotation Speed –
3000rpm
 Rotation - CW
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23.  HIGH EFFICIENCY
 LOW COOLING WATER REQUIREMENT
 FAST START
 LOW ENVIRONMENT POLLUTION
 LOW COSTS
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24. • A Practical training for a period of 30 days
provided me with depth knowledge about
combined cycle power plant and how to Power
Generation.
• Power Generation Plant are very Economical.
• The Present Installed Capacity Of Dholpur
Combined Cycle Power Plant is 330MW.
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25. Thursday, October 30, 2014 PCE/EIC/11/010 25

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