The document summarizes the working principles and components of a gas turbine power plant. It discusses that air is compressed in a compressor then mixed with fuel and ignited in the combustion chamber. The hot gases spin the turbine which powers the compressor and generator. The main components are the compressor, combustion chamber, and turbine. The compressed air and fuel burn in the combustion chamber and the hot gases power the high pressure turbine which drives the compressor, and the low pressure turbine which powers the generator. About 66% of the power is used to run the compressor and 34% generates electricity.
A steam turbine is a prime mover in which the potential energy of the steam is transformed into kinetic energy and later in its turn is transformed into the mechanical energy of rotation of the turbine shaft
A gas turbine, also called a combustion turbine, is a type of internal combustion engine. It has an upstream rotating compressor coupled toa downstream turbine, and a combustion chamber in-between. Energy is added to the gas stream in the combustor, where fuel is mixed with air and ignited. In the high-pressure environment of the combustor, combustion of the fuel increases the temperature. The products of the combustion are forced into the turbine section
Visit https://www.topicsforseminar.com to Download
A steam turbine is a prime mover in which the potential energy of the steam is transformed into kinetic energy and later in its turn is transformed into the mechanical energy of rotation of the turbine shaft
A gas turbine, also called a combustion turbine, is a type of internal combustion engine. It has an upstream rotating compressor coupled toa downstream turbine, and a combustion chamber in-between. Energy is added to the gas stream in the combustor, where fuel is mixed with air and ignited. In the high-pressure environment of the combustor, combustion of the fuel increases the temperature. The products of the combustion are forced into the turbine section
Visit https://www.topicsforseminar.com to Download
A generating station in which diesel engine is used as the prime mover for the generation of electrical energy
is known as Diesel power station or Diesel power plant
PPT describes the engine performance parameters of the I.C. engine.
Engine performance is an indication of the degree of success of the engine performs its assigned task, i.e. the conversion of the chemical energy contained in the fuel into the useful mechanical work. The engine performance is indicated by the term efficiency, η. Five important engine efficiencies and other related engine performance parameters are:
Power
Indicated Thermal Efficiency (ηith)
Brake Thermal Efficiency (ηbth)
Mechanical Efficiency (ηm)
Volumetric Efficiency (ηv)
Relative Efficiency or Efficiency Ratio (ηrel)
Mean Effective Pressure (Pm)
Specific Fuel Consumption (sfc)
Fuel-Air or Air-Fuel Ratio (F/A or A/F)
Calorific Value (CV)
Power:-
The main purpose of running an engine is to obtain mechanical power.
Brake Power (B.P.)
The power developed by an Engine at the output shaft is called the brake power.
Brake Power= Brake Workdone/Time
B.P.=BWD/sec.
Indicated power (I.P.)
The total power developed by Combustion of fuel in the combustion chamber is called indicated power.
Indicated Power= Indicated Workdone/Time
I.P.=IWD/sec.
Frictional Power (F.P.)
The difference between I.P. and B.P. is called frictional power (f.p.).
FP = IP – BP
Thermal Efficiency (ηth)
Thermal efficiency is the ratio of Power to energy supplied by the fuel.
ηth= Power/ Energy
In I.C. Engine, thermal efficiency can be classified into two categories i.e.
Indicated Thermal Efficiency (ηith)
Indicated thermal efficiency is the ratio of indicated power to the heat supplied or added.
ηith= IP/Qs
2. Brake Thermal Efficiency (ηith)
Brake Thermal Efficiency is the ratio of brake power to the heat supplied or added.
ηbth= BP/Qs
Volumetric Efficiency (ηv)
This is one of the most important parameters which decide the performance of four-stroke engines. Four stoke engines have distinct suction stoke, volumetric efficiency indicates the breathing ability of the engine.
Volumetric efficiency is defined as the ratio of actual flow rate of air into the intake system to rate at which the volume is displaced by the system.
ηv= (푚 ̇"a/a" )/(푉푑푖푠푝푎푐푒푑 푋 푁/2)
"a"= Inlet density is taken atmospheric air density
N= Number of the cylinder in use
INTRODUCTION
THERMODYNAMIC CYCLE OF STEAM FLOW
RANKINE CYCLE (IDEAL , ACTUAL ,REHEAT)
LAYOUT OF STEAM POWER PLANT
MAJOR COMPONENTS AND THEIR FUNCTIONS
ALTERNATOR
EXCITATION SYSTEM
GOVERNING SYSTEM
Brayton or Joule cycle -P-V diagram and thermal efficiency. Construction and working of gas turbine i] Open cycle ii] Closed cycle gas turbine, simple circuit, Comparison, P-V & T-S diagramTurbojet and Turboprop Engine and Application
Basic Scheme Open Cycle Gas Turbine Plant Aman Gupta
Gas Turbine Power Plant
A gas turbine, also called a combustion turbine, is a type of internal combustion engine.
Types of gas turbine power plant
1 Open cycle gas power plant
2 Closed cycle gas power plant
Combined Cycle Gas Turbine Power Plant Part 1Anurak Atthasit
Introduction to Combined Cycle Gas Turbine Power Plant. Describing the advantage and design limit of the CCGT. Overview of Brayton Cycle and Rankine Cycle - showing some basic thermodynamic to explain some background of CCGT.
A generating station in which diesel engine is used as the prime mover for the generation of electrical energy
is known as Diesel power station or Diesel power plant
PPT describes the engine performance parameters of the I.C. engine.
Engine performance is an indication of the degree of success of the engine performs its assigned task, i.e. the conversion of the chemical energy contained in the fuel into the useful mechanical work. The engine performance is indicated by the term efficiency, η. Five important engine efficiencies and other related engine performance parameters are:
Power
Indicated Thermal Efficiency (ηith)
Brake Thermal Efficiency (ηbth)
Mechanical Efficiency (ηm)
Volumetric Efficiency (ηv)
Relative Efficiency or Efficiency Ratio (ηrel)
Mean Effective Pressure (Pm)
Specific Fuel Consumption (sfc)
Fuel-Air or Air-Fuel Ratio (F/A or A/F)
Calorific Value (CV)
Power:-
The main purpose of running an engine is to obtain mechanical power.
Brake Power (B.P.)
The power developed by an Engine at the output shaft is called the brake power.
Brake Power= Brake Workdone/Time
B.P.=BWD/sec.
Indicated power (I.P.)
The total power developed by Combustion of fuel in the combustion chamber is called indicated power.
Indicated Power= Indicated Workdone/Time
I.P.=IWD/sec.
Frictional Power (F.P.)
The difference between I.P. and B.P. is called frictional power (f.p.).
FP = IP – BP
Thermal Efficiency (ηth)
Thermal efficiency is the ratio of Power to energy supplied by the fuel.
ηth= Power/ Energy
In I.C. Engine, thermal efficiency can be classified into two categories i.e.
Indicated Thermal Efficiency (ηith)
Indicated thermal efficiency is the ratio of indicated power to the heat supplied or added.
ηith= IP/Qs
2. Brake Thermal Efficiency (ηith)
Brake Thermal Efficiency is the ratio of brake power to the heat supplied or added.
ηbth= BP/Qs
Volumetric Efficiency (ηv)
This is one of the most important parameters which decide the performance of four-stroke engines. Four stoke engines have distinct suction stoke, volumetric efficiency indicates the breathing ability of the engine.
Volumetric efficiency is defined as the ratio of actual flow rate of air into the intake system to rate at which the volume is displaced by the system.
ηv= (푚 ̇"a/a" )/(푉푑푖푠푝푎푐푒푑 푋 푁/2)
"a"= Inlet density is taken atmospheric air density
N= Number of the cylinder in use
INTRODUCTION
THERMODYNAMIC CYCLE OF STEAM FLOW
RANKINE CYCLE (IDEAL , ACTUAL ,REHEAT)
LAYOUT OF STEAM POWER PLANT
MAJOR COMPONENTS AND THEIR FUNCTIONS
ALTERNATOR
EXCITATION SYSTEM
GOVERNING SYSTEM
Brayton or Joule cycle -P-V diagram and thermal efficiency. Construction and working of gas turbine i] Open cycle ii] Closed cycle gas turbine, simple circuit, Comparison, P-V & T-S diagramTurbojet and Turboprop Engine and Application
Basic Scheme Open Cycle Gas Turbine Plant Aman Gupta
Gas Turbine Power Plant
A gas turbine, also called a combustion turbine, is a type of internal combustion engine.
Types of gas turbine power plant
1 Open cycle gas power plant
2 Closed cycle gas power plant
Combined Cycle Gas Turbine Power Plant Part 1Anurak Atthasit
Introduction to Combined Cycle Gas Turbine Power Plant. Describing the advantage and design limit of the CCGT. Overview of Brayton Cycle and Rankine Cycle - showing some basic thermodynamic to explain some background of CCGT.
Gas Turbine Theory - Principle of Operation and ConstructionSahyog Shishodia
This presentation tells all about basic principle behind Gas Turbine, their working, operation and construction. How they came into existence and where are they used.
Brayton cycle is a air standard cycle used to understand working of gas turbines. It is constant pressure cycle which shows how process are going in gas turbine.
Automobile engineering is a branch study of engineering which teaches manufacturing, designing, mechanical mechanisms as well as operations of automobiles. It is an introduction to vehicle engineering which deals with motorcycles, cars, buses, trucks, etc.
this presentation is prepared by rajesh nayak during his engineering through electrical branch. this is the best ppt you will find in slideshare. thankyou
Novel technique for hybrid electric vehicle presentation 1Manish Sadhu
Problem Summary:
Higher demand of current results an important heating of the battery, this heating will generate several consequences, firstly a reduction of lifespan of the battery and secondly a significant loss of capacity. Supercapacitors are used in series with a power battery to provide power requirement in transient state. An energy battery is placed in parallel, this battery gives the power in steady state.
Detailed Description Problem:
Modern batteries (e.g., Li-ion batteries) provide high discharge efficiency, but the rate capacity effect in these batteries drastically decreases the discharge efficiency as the load current increases. Electric double layer capacitors, or simply supercapacitors, have extremely low internal resistance, and a battery-supercapacitor hybrid may mitigate the rate capacity effect for high pulsed discharging current. However, a hybrid architecture comprising a simple parallel connection does not perform well when the supercapacitor capacity is small, which is a typical situation because of the low energy density and high cost of supercapacitors. A new battery-supercapacitor hybrid system that employs a constant-current charger. The constant current charger isolates the battery from supercapacitor to improve the end-to-end efficiency for energy from the battery to the load while accounting for the rate capacity effect of Li-ion batteries and the conversion efficiencies of the converters.
Excepted Outcome:
The supercapacitor will take an important part for the improvement of the energetic efficiency of the embarked systems and in the reduction of batteries replacement. Supercapacitor increases the performance motor at accelerated and reaccelerated mode. Also increases the life span of the battery. Indeed the supercapacitors will not be used as source of pure energy, because of their weak energy mass, but rather of complement to the battery, providing the strong demands of power. The supercapacitor solution as source of power is clearly interesting; however the cost of the kilowatt per hour remains higher than for the batteries lead-acid (approximately 30 times more) but with a weight and volume weaker.
Other Description:
Supercapacitors are widely used for energy storage in various applications. Specifically, supercapacitors are gaining more attention as energy storage elements for renewable energy sources which tend to have a high charge-discharge cycle frequency, and demand high cycle efficiency and good
Depth-of-discharge(DOD) properties. There are several related battery-supercapacitor hybrid architectures in the literature on hybrid electric vehicles (HEVs). A bidirectional converter-based approach is introduced for the regenerative brake-equipped HEVs. A DC bus-based architecture for the battery-supercapacitor hybrid system is described in. However, it is difficult to directly apply these architectures to portable applications because they are designed for the HEV which involves high-power op
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
2. Unit III – Power plant engineering
Gas turbine power plant
Gas turbine:
Working principle :
Air is compressed(squeezed) to high
pressure by a fan-like device called the
compressor.
Then fuel and compressed air are mixed
in a combustion chamber and ignited.
Hot gases are given off, which spin the
turbine wheels.
Most of the turbine’s power runs the
compressor. Part of it drives the
generator/machinery.
May 15, 2015 2
3. Unit III – Power plant engineering
Gas turbine power plant…
Gas turbine:
Description:
Gas turbines burn fuels such as oil,
nature gas and pulverised(powdered)
coal.
Instead of using the heat to produce
steam, as in steam turbines, gas turbines
use the hot gases directly to turn the
turbine blades.
Gas turbines have three main parts:
i) Air compressor
ii) Combustion chamber
iii) Turbine
May 15, 2015 3
4. Unit III – Power plant engineering
Gas turbine power plant…
Gas turbine:
Air compressor:
The air compressor and turbine are
mounted at either end on a common
horizontal axle(shaft), with the
combustion chamber between them.
Gas turbines are not self starting. A
starting motor initially drives the
compressor till the first combustion of
fuel takes place, later, part of the
turbine’s power runs the compressor.
The air compressor sucks in air and
compresses it, thereby increasing its
pressure.
May 15, 2015 4
5. Unit III – Power plant engineering
Gas turbine power plant…
Gas turbine:
Combustion chamber:
In the combustion chamber, the
compressed air combines with fuel and
the resulting mixture is burnt.
The greater the pressure of air, the better
the fuel air mixture burns.
Modern gas turbines usually use liquid
fuel, but they may also use gaseous fuel,
natural gas or gas produced artificially
by gasification of a solid fuel.
Note :
The combination of air compressor and
combustion chamber is called as gas
generator.
May 15, 2015 5
6. Unit III – Power plant engineering
Gas turbine power plant…
Gas turbine:
Turbine:
o The burning gases expand rapidly and
rush into the turbine, where they cause
the turbine wheels to rotate.
o Hot gases move through a multistage gas
turbine.
o Like in steam turbine, the gas turbine
also has fixed(stationary) and
moving(rotor) blades.
o The stationary blades guide the moving
gases to the rotor blades and adjust its
velocity.
o The shaft of the turbine is coupled to a
generator or machinery to drive it.
May 15, 2015 6
7. Unit III – Power plant engineering
Gas turbine power plant…
Applications of gas turbine:
Gas turbines are used to drive pumps, compressors and high speed cars.
Used in aircraft and ships for their propulsion. They are not suitable for
automobiles because of their very high speeds.
Power generation(used for peak load and as stand-by unit).
Note :
Gas turbines run at even higher temperatures than steam turbines, the
temperature may be as high as 1100 – 12600
C.
The thermal efficiency of gas turbine made of metal components do not
exceed 36%.
Research is underway to use ceramic components at turbine inlet
temperature of 13500
C or more, and reach thermal efficiencies over 40% in a
300 kW unit.
May 15, 2015 7
8. Layout of a gas turbine power plant
May 15, 2015 8
9. Layout of gas turbine power plant…
Starting motor:
Gas turbines are not self starting.
They require a starting motor to
first bring the turbine to the
minimum speed called coming –in
speed, for this purpose a starting
motor is required.
Low pressure compressor(LPC):
The purpose of the compressor is
to compress the air. Air from the
atmosphere is drawn into the LPC
and is compressed.
May 15, 2015 9
Intercooler:
The air after compression in the LPC
is hot. It is cooled by the intercooler.
The intercooler is circulated with
cooling water.
10. Layout of gas turbine power plant…
High pressure compressor(HPC):
The air from the intercooler enters
the HPC where it is further
compressed to a high pressure.
The compressed air passes
through a regenerator.
Regenerator(Heat exchanger):
The air entering the combustion
chamber(CC) for combustion
must be hot. The heat from the
exhaust gases is picked up by the
compressed air entering the
combustion chamber.
May 15, 2015 10
Combustion chamber:
The fuel(natural gas, pulverized coal,
kerosene or gasoline) is injected into
the combustion chamber.
The fuel gets ignited because of the
compressed air.
The fuel along with the compressed
air is ignited sometimes with a spark
plug.
11. Layout of gas turbine power plant…
High pressure turbine (HPT):
In the beginning the starting
motor runs the compressor shaft.
The hot gases(products of
combustion) expands through the
high pressure turbine.
It is important to note that when
the HPT shaft rotates it infact
drives the compressor shaft which
is coupled to it. Now the HPT
runs the compressor and the
starting motor is stopped.
Note :
About 66% of the power
developed by the gas turbine
power plant is used to run the
compressor.
May 15, 2015 11
Only 34% of the power developed by
the plant is used to generate electric
power.
12. Layout of gas turbine power plant…
Low pressure turbine (LPT):
The purpose of the LPT is to
produce electric power.
The shaft of the LPT is directly
coupled with the generator for
producing electricity.
The hot gases(products of
combustion) after leaving the
HPT is again sent to a combustion
chamber where it further
undergoes combustion.
The exhaust gases after leaving
the LPT passes through the
regenerator before being
exhausted through the chimney
into the atmosphere.
May 15, 2015 12
The heat from the hot gases is used
to preheat the air entering the
combustion chamber. This preheating
of the air improves the efficiency of the
combustion chamber.
13. Gas turbine power plant…
May 15, 2015 13
Advantages of gas turbine power plant :
Storage of fuel requires less area and handling is easy.
The cost of maintenance is less.
It is simple in construction. There is no need for boiler, condenser and
other
accessories as in the case of steam power plants.
Cheaper fuel such as kerosene , paraffin, benzene and powdered coal can
be used which are cheaper than petrol and diesel.
Gas turbine plants can be used in water scarcity areas.
Less pollution and less water is required.
Disadvantages of gas turbine power plant :
66% of the power developed is used to drive the compressor. Therefore
the gas turbine unit has a low thermal efficiency.
The running speed of gas turbine is in the range of (40,000 to 100,000
rpm) and the operating temperature is as high as 1100 – 12600
C. For this
reason special metals and alloys have to be used for the various parts of
the turbine.
High frequency noise from the compressor is objectionable.
14. Videos and Animations
1. How a gas turbine engine works
2. Gas turbine working principle
3. 3 Gas turbine power plant.swf