Combined cycle power project,dholpur

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

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..??

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

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.

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.

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

7
How does a Combined Cycle
Plant Work?

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%.

9
Combustion Turbine Fuels
• Conventional Fuels
– Natural Gas
– Liquid Fuel Oil
• Nonconventional Fuels
– Crude Oil
– Refinery Gas
– Propane
• Synthetic Fuels
– Chemical Process
– Physical Process

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

GAS TURBINE - A HEAT ENGINE
Air Intake System.
Compressor.
Combustion Chamber.
Turbine.
Generator.

12
Typical Plant Components
Oil System Generator
Fire Protection
Starting Engine

Energy Efficiency of the Gas Turbine
Combined Cycle Power Generation System

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.

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.

WORKING OF STEAM TURBINE
BOILER STEAM
TRBINE
WATER
AIR
FUEL
STEAM
WASTE
GASES
MECHANICAL
ENERGY
ELECTRICAL
ENERGY
BUS BARS
ALTERNATOR
EXHAUST
STEAM

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.

Steam Generating Plant
2) Economiser:
It’s essentially a feed
water heater and
derives heat from the
flue gases

3) Boiler: The heat of
combustion in the boiler
is utilized to convert
water into steam at
high temperature and
pressure

4) Superheater:
The steam produced
in boiler is wet and
is passed through
a superheater where
it is dried and
superheated.
Increases efficiency

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.

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

 HIGH EFFICIENCY
 LOW COOLING WATER REQUIREMENT
 FAST START
 LOW ENVIRONMENT POLLUTION
 LOW COSTS

• 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.

Combined cycle power project,dholpur

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