combined cycle power project,dholpur
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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..??
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BACKGROUND OF THE COMPANY
Setup- 2007 Location- 55 km. south west Of Agra,pachganv road,dholpur.Area- 143 BighaEstimated 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- ONGCFuel Transporter- GAIL
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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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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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UNITS CONFIGURATION
Totall Station Capacity 330MW.
TYPE OF TURBINE GENERATEGAS TURBINE -1 110MW
GAS TURBINE-2 110MW
STEAM TURBINE 110MW
TOTAL CAPACITY - 330 MW
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How does a Combined Cycle
Plant Work?
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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
Combustion Turbine Fuels
• Conventional Fuels– Natural Gas
– Liquid Fuel Oil
• Nonconventional Fuels– Crude Oil
– Refinery Gas
– Propane
• Synthetic Fuels– Chemical Process
– Physical ProcessThursday, October 30, 2014 PCE/EIC/11/010 9
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 ModeThursday, October 30, 2014 PCE/EIC/11/010 10
GAS TURBINE - A HEAT ENGINE
Air Intake System.
Compressor.
Combustion Chamber.
Turbine.
Generator.
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Typical Plant Components
Oil System Generator
Fire ProtectionStarting Engine
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Energy Efficiency of the Gas Turbine
Combined Cycle Power Generation System
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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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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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WORKING OF STEAM TURBINE
BOILER STEAMTRBINE
WATER
AIR
FUEL
STEAM
WASTE
GASES
MECHANICAL
ENERGY
ELECTRICAL
ENERGY
BUS BARS
ALTERNATOR
EXHAUST
STEAM
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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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Steam Generating Plant
2) Economiser:It’s essentially a feed water heater and derives heat from the flue gases
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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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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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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 generating plant
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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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HIGH EFFICIENCY
LOW COOLING WATER REQUIREMENT
FAST START
LOW ENVIRONMENT POLLUTION
LOW COSTS
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• 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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