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Gas Turbine

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2

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Piston Engine vs Gas Turbine Piston Engine

All process take place in one component- All process take place in one component-Cylinder

- Constant Volume- Intermitent Combustion- Low Power

Gas Turbine- All process take place in separate component

3

- Constant Pressure- Continuous Combustion- High Power

Piston Engine

Gas Turbine

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Gas Turbine Line-Up

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Gas Turbine Line-Up

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Gas Turbine Line-Up

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Gas Turbine Line-Up

8

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Heavy Frame vs Aeroderivative Gas Turbine

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Heavy Frame vs Aeroderivative Gas Turbine

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11

12

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Gas Turbine Key Components

Compressors Combustion Chambers Turbines

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COMPRESSORS

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Sentrifugal Compressors

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Axial Compressors

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Axial Compressors

18

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Dual Axial Compressors

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Dual Axial Compressors

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Compressor Surge & Compressor Airbleed

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Variable-Angle Compressor Stator

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Diffuser Section and Airbleed

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COMBUSTION CHAMBERS (COMBUSTORS)

24

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26

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TURBINE

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Impuls Turbine

28

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Reaction Turbine

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30

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Turbine Cooling

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Cooling Passage Configuration

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Gas Turbine Cycle Fundamentals

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34

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Pressure Ratio (P.R)High P.R. High Efficiency- High Mean Temp. of Heat

Addition- Small Heat RejectionLow P.R. Low Efficiency- Low Mean Temp. of Heat

Addition- Large Heat Rejection

Specific Power (S.P.)

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Specific Power (S.P.)Max. S.P. at rt = TITR^0.5

Comp. Disch. Temp. = Turbine Exh. Temp.

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Gas Turbine Performance of On-Site Condition

Effect of Inlet Pressure Loss Effect of Exhaust Pressure Loss Effect of Altitude (Ambient Pressure) Efect of Ambient Temperature Effect of Humidity

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Effect of Fuel

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Gas Turbine Major Anciliary Systems

Inlet Filter System Inlet Air Cooler Silencer Engine Enclosure Secondary Air System Starter System Lubrication System

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Lubrication System Control System Compressors Wash System

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Several Types of Air Filter

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Inlet Air Cooler

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Scilencer

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Engine Enclosure

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Secondary Air System

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Starter System

Electric Motor Strarter Pneumatic Motor Starter Hydraulic Motor Starter Hydraulic Motor Starter

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Control System

Light-off and acceleration controlcontrol

Steady state speed control Transient condition control Limit control

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Compressor Wash System

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Combine Cycle Aplication

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60

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62

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631 of 2

642 of 2

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