2. ContentsContents
• Introduction
• Turbine
• Types of Turbine
• Gas Turbine
• Components of Gas turbine
• Working Principle of Gas Turbine
• Applications of GT
• Advantages & Disadvantages of GT

3. IntroductionIntroduction
• The word “turbine” was coined by the
French engineer Claude Bourdin
• Derived from the Latin word for
“whirling” or a “vortex”.

4. Types of TurbineTypes of Turbine

5. Gas TurbineGas Turbine
• Gas turbines combust liquid or gaseous
fossil fuels in the presence of compressed
air and then convert the thermal and
kinetic energy of the product gases into
mechanical energy
• Gas turbines burn fuels such as oil, nature
gas and pulverized(powdered) coal

6. Basic ComponentsBasic Components

7. Basic ComponentsBasic Components
• Compressor
 Draws in air & compresses it
• Combustion ChamberCombustion Chamber
 Fuel pumped in and ignited to burn with
compressed air
• Turbine
 Hot gases converted to work
 Can drive compressor & external load

8. CompressorCompressor
• Supplies high pressure air for combustion
process

9. Combustion ChambersCombustion Chambers
• Where air & fuel are mixed, ignited, and
burned
• Spark plugs used to ignite fuel
• Types
 Can: for small, centrifugal compressors
 Annular: for larger, axial compressors (LM
2500)
 Can-annular: for really large turbines

10. TurbinesTurbines
• Consists of one or more stages designed to
develop rotational energy
• Uses sets of nozzles & blades

11. Working Principle of GTWorking Principle of GT
• The compressed air passes to the combustion
chamber, where it is mixed with fuel and
burned. The combustion produces hot gases
that rush through the turbine blades held on a
rotor.

13. Advantages of GTAdvantages of GT
• Weight reduction of 70%
• Simplicity
• Reduced manning requirements
• Quicker response time
• Faster Acceleration/deceleration
• Modular replacement
• Less vibrations
• More economical

15. Disadvantages of GTDisadvantages of GT
• Many parts under high stress
• High pitched noise
• Needs large quantities of gas
• Large quantities of hot exhaust (target)

16. Applications of GTApplications of GT
•High Speed Cars.
•Aircraft
•Ships.
• Power Generation (Used For Peak Load
And As Stand-by Unit).