The document discusses gas turbines used for power generation. It begins by defining gas turbines and their uses, including for power generation where high pressure, high temperature gas is generated inside the engine and expands through a specially designed turbine. It then explains the basic principle of operation, including intake, compression, combustion, turbine, and nozzle/free turbine stages. Next, it covers some key advantages of gas turbines like high power-to-weight ratio and smaller size compared to reciprocating engines, as well as lower emission levels, but also disadvantages such as high costs associated with high speeds/temperatures and difficulty in design. It concludes by noting efforts to further reduce emissions from gas turbines to meet regulations.

1. POWER ELETRONICIS
Gas Turbine and Power
Generation
NAME:A .VINOTHKUMAR
ROLLNO:47
SEMINOR NO:1

2. Introduction
Advantages and Disadvantages
Future Requirements
Gas Turbine Combustors
Ongoing Research
Conclusions
Acknowledgement
Outline

3. TURBINES: Machines to extract fluid power
from flowing fluids
Steam Turbine Water Turbines Gas TurbinesWind Turbines
Aircraft Engines
Power Generation
•High Pressure, High Temperature gas
•Generated inside the engine
•Expands through a specially designed TURBINE

4. PRINCIPLE OF OPERATION
• Intake
– Slow down incoming air
– Remove distortions
• Compressor
– Dynamically Compress air
• Combustor
– Heat addition through
chemical reaction
• Turbine
– Run the compressor
• Nozzle/ Free Turbine
– Generation of thrust
power/shaft power

5. Advantages and Disadvantages
• Great power-to-weight
ratio compared to
reciprocating engines.
• Smaller than their
reciprocating
counterparts of the same
power.
• Lower emission levels
• Expensive:
– high speeds and high operating
temperatures
– designing and manufacturing gas
turbines is a tough problem from
both the engineering and materials
standpoint
• Tend to use more fuel when they
are idling
• They prefer a constant rather
than a fluctuating load.
That makes gas turbines great for things like transcontinental jet aircraft and power
plants, but explains why we don't have one under the hood of our car.

6. Emission in Gas Turbines
•Lower emission compared to all conventional methods (except nuclear)
•Regulations require further reduction in emission levels