GAS TURBINE ENGINES

 GAS TURBINE ENGINE

The gas turbine may be used to accelerate a mass of gas through the engine and a propelling nozzle ,in which case it is known as a turbo-jet ,to drive a propeller (turbo-prop) , a large fan (turbo-fan) ,or to drive the rotor of helicopter (turbo-shaft) early examples of aircraft using the first two propulsion methods were De Havilland Comet and the Vickers Viscount most present day large transport aircraft use the turbo-fan engines.

All aircraft propulsion systems employ Newton’s third law of motion which states that for every force (or action) there is an equal and opposite reaction. The amount of forward thrust created is proportional to the product of the mass of air affected and the rearward acceleration imparted to it. In the case of propeller driven aircraft and turbo-fans a large mass of air is given a relatively small rearward acceleration. In turbo-jets a much smaller mass of air is subject to a much greater acceleration.

GENERAL CONSTRUCTION OF GAS TURBINE ENGINE

A typical gas turbine engine consists of:

1. An air inlet

2. Compressor section

3. Combustion section

4. Turbine section

5. Exhaust section

6. Accessory section




CONTENTS:

1- REACTION ENGINES  

2- AVIATION FUEL

3- AIR INLET  

4- COMPRESSOR 

5- COMBUSTION CHAMBER  

6- TURBINE  

7- EXHAUST   

8- TYPES OF GAS TURBINE ENGINE

9- AIRCRAFT FUEL SYSTEM

10. ENGINE INDICATION SYSTEMS

      10.1- ENGINE TEMPERATURE INDICATION

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