Jet engine working principle

THIS PRESENTATION WILL HELP YOU TO UNDERSTAND DIFFERENT TYPES OF JET ENGINE ESPECIALLY TURBOFAN

1. WHAT IS JET ENGINE?

2. A JET ENGINE IS A REACTION ENGINE THAT DISCHARGES FAST MOVING JET THAT GENERATES THRUST FOR PROPULSION.

3. WHO INVENTED IT? Sir Frank Whittle Hans von Ohain

4. TYPES OF JET ENGINE

5. RAMJET

6. SCRAMJET

7. TURBOJET

8. TURBOFAN

9. TURBOPROP

10. PULSEJET

11. MY TOPIC TURBOFAN ENGINE

12. BUT!!!!!!!

13. HOW IT WORKS?????

14. THE BASICS JET ENGINE SUCKS AIR FROM FROUNT USING FAN,AIR IS COMPRESSED,COMPRESSED AIR MIXES WITH FUEL AND GASES ARE DISCHARGED AT VERY HIGH SPEED FROM BACK OF ENGINE PROVIDING THRUST.

15. PARTS OF A TURBOFAN

16. THE FAN THE FAN BLADES ARE MADE UP TITANIUM WHICH SUCKS TREMENDEOUS AMOUNT OF AIR.IN THIS TYPE OF JET ENGINE AIR FLOWS IN TWO PARTS-MAJORITY OF AIR IS BYPASSED OUTSIDE THE COREOF THE ENGINE AND REST OF THE AIR IS FLOWN THROUGH THE CORE OF THE ENGINE. REASON -PROVIDES ADDITIONAL THRUST. -COOLS THE ENGINE. -MAKES THE ENGINE QUITER.

17. THE COMPRESSOR The compressor is located in the first part of the engine core. The compressor, which is called an "axial flow compressor", It's called axial flow, because the air passes through the engine in a direction parallel to the shaft of the engine. As the air moves through the compressor, each set of blades is slightly smaller, adding more energy and compression to the air . In between each set of compressor blades are non-moving airfoil shaped blades called "stators". These stators (which are also called vanes), increase the pressure of the air by converting the rotational energy into static pressure. The stators also prepare the air for entering the next set of rotating blades. In other words, they "straighten" the flow of air.

18. THE COMBUSTOR Diffuser- slows down the air from the compressor, making it easier to ignite. The dome and swirler - add turbulence to the air so it can more easily mix with fuel. Fuel injector- sprays fuel into the air, creating a fuel/air mixture that can be ignited. T he liner - is where the actual combustion happens. The liner has several inlets, allowing air to enter at multiple points in the combustion zone. Igniter- airplane . Once the igniter lights the fire, it is self-sustaining, and the igniter is turned off

19. THE TURBINE The turbine is a series of airfoil shaped blades that are very similar to the blades in the compressor. As the hot, high-speed air flows over the turbine blades, they extract energy from the air, spinning the turbine around in a circle, and turning the engine shaft that it's connected to . This is the same shaft that the fan and compressor are connected to, so by spinning the turbine, the fan and compressor on the front of the engine continue sucking in more air that will soon be mixed with fuel and burned.

20. THE NOZZLE The nozzle is essentially the exhaust duct of the engine, and it's where the high speed air shoots out the back. by forcing air out the back of the engine at high speed, the airplane is pushed forward . In some engines, there's a mixer in the exhaust nozzle as well. This simply mixes some of the bypass air flowing around the engine with the hot, combusted air, making the engine quieter.

21. STILL DID’T UNDERSTAND!!!!!!

22. WATCH THIS

23. THANK YOU