How a Jet Engine works

 

Below is an image of a Rolls Royce engine. The jet engine usually consists of a fan, compressor, combustion chamber and turbine. The fan and compressor are usually made of titanium alloys due to the relatively low service temperature. The combustion chamber and turbine are mainly made of Ni-based superalloys.

rollseng

Rolls Royce Trent Engine (courtesy of Rolls Royce)

Demonstration

Look at the Jet Engine model: identify the fan, compressor, combustion chamber and the turbine.

The engine process can be simply modelled by: ‘Suck, Squeeze, Bang, Blow’.

      • Air is drawn in by the fan (100 degrees),
      • Air is then compressed and ignited in the combustion chamber (1500 degrees).
      • The turbine then extracts the energy from the hot air (1500 degrees), providing thrust.

http://www.rolls-royce.com/interactive_games/journey02/flash.html

 

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