Gas turbines work on the Brayton cycle and have three main components: an air compressor, combustion chamber, and turbine. The air compressor increases the pressure of air that is mixed with fuel and ignited in the combustion chamber. This produces hot gases that spin the turbine, which drives the compressor and generator. There are different types of gas turbines including open cycle, closed cycle, aeroderivative, and those used for auxiliary power or jet engines. Gas turbines have advantages like easy fuel storage and maintenance but disadvantages include lower efficiency than steam turbines. They are commonly used to generate power and to propel aircraft and ships.
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
The gas turbine is an internal combustion engine that uses air as the working fluid. The engine extracts chemical energy from fuel and converts it to mechanical energy using the gaseous energy of the working fluid (air) to drive the engine and propeller, which, in turn, propel the aeroplane.
The gas turbine is an internal combustion engine that uses air as the working fluid. The engine extracts chemical energy from fuel and converts it to mechanical energy using the gaseous energy of the working fluid (air) to drive the engine and propeller, which, in turn, propel the airplane.
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
The gas turbine is an internal combustion engine that uses air as the working fluid. The engine extracts chemical energy from fuel and converts it to mechanical energy using the gaseous energy of the working fluid (air) to drive the engine and propeller, which, in turn, propel the aeroplane.
The gas turbine is an internal combustion engine that uses air as the working fluid. The engine extracts chemical energy from fuel and converts it to mechanical energy using the gaseous energy of the working fluid (air) to drive the engine and propeller, which, in turn, propel the airplane.
this ppt is made with the reference of heat exchangers that have been used in NHFI, it almost covers their every aspect that is their working, maintenance, and safety !!
so please suit yourself!!!
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.
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Turbojets can be highly efficient for supersonic aircraft. Turbojets have poor efficiency at low vehicle speeds, which limits their usefulness in vehicles other than aircraft. Turbojet engines have been used in isolated cases to power vehicles other than aircraft, typically for attempts on land speed records.
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.
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.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
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.
2. Gas Turbines?
• Gas turbines also called combustion turbines, a
type of IC engine in which burning of an air-fuel
mixture produces hot gases that spin a turbine to
produce power.
• It is the production of hot gas during fuel
combustion, not the fuel itself that the gives gas
turbines the name.
• Combustion occurs continuously in gas turbines,
as opposed to reciprocating IC engines, in which
combustion occurs intermittently.
3. Working?
They Work On Brayton Cycle.
Air is compressed(squeezed) to high pressure by a compressor.
Then fuel and compressed air are mixed in a combustion
chamber and ignited.
Hot gases are given off, which spin the turbine wheels
5. Components Of Gas Turbine?
Gas turbines have three main parts:
i) Air compressor
ii) Combustion chamber
iii) Turbine
6. Air compressor:
The air compressor and turbine are mounted at
either end on a common shaft, with the combustion
chamber between them.
Gas turbines are not self starting. A starting motor
is used.
The air compressor sucks in air and compresses it,
thereby increasing its pressure.
7. 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.
8. Turbine:
Hot gases move through a multistage gas turbine.
Like in steam turbine, the gas turbine also has
stationary and moving blades.
The stationary blades
guide the moving gases to the rotor blades
adjust its velocity.
The shaft of the turbine is coupled to a generator.
9. Types?
• OPEN CYCLE GAS TURBINE- It consists of a
compressor, combustion chamber and a turbine.
The compressor takes in ambient air and raises
its pressure. Heat is added to the air in
combustion chamber by burning the fuel and
raises its temperature.
• The heated gases coming out of combustion
chamber are then passed to the turbine where it
expands doing mechanical work.
11. • CLOSE CYCLE GAS TURBINE-It uses air as working
medium. In closed cycle gas turbine plant, the working
fluid (air or any other suitable gas) coming out from
compressor is heated in a heater by an external source at
constant pressure.
• The high temperature and high-pressure air coming out
from the external heater is passed through the gas turbine.
• The fluid coming out from the turbine is cooled to its
original temperature in the cooler using external cooling
source before passing to the compressor.
• The working fluid is continuously used in the system
without its change of phase and the required heat is given
to the working fluid in the heat exchanger.
13. • AERODERIVATIVE GAS TURBINES-
Aeroderivatives are also used in electrical power
generation due to their ability to be shut down, and
handle load changes more quickly than industrial
machines. They are also used in the marine industry to
reduce weight. Ex- General Electric LM2500, General
Electric LM6000.
• SCALE JET ENGINES- Also known as miniature gas
turbines or micro-jets. Kurt Schreckling, produced one
of the world's first Micro-Turbines, the FD3/67.
• This engine can produce up to 22 newtons of thrust,
and can be built by most mechanically minded people
with basic engineering tools, such as a metal lathe.
14. AUXILLARY POWER UNIT- APUs are small gas
turbines designed to supply auxiliary power to larger,
mobile, machines such as an aircraft. They supply:
• compressed air for air conditioning and ventilation,
• compressed air start-up power for larger jet engines,
• mechanical (shaft) power to a gearbox to drive
shafted accessories or to start large jet engines, and
• electrical, hydraulic and other power-transmission
sources to consuming devices remote from the APU.
15. • JET ENGINES- Air breathing jet engines are
gas turbines optimized to produce thrust from
the exhaust gases, or from ducted
fans connected to the gas turbines. Jet engines
that produce thrust from the direct impulse of
exhaust gases are often called turbojets,
whereas those that generate thrust with the
addition of a ducted fan are often
called turbofans or (rarely) fan-jets.
17. ADVANTAGES?
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.
18. DISADVANTAGES?
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 – 12600C. 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.