1. Turbojet:
A turbojet propels the aircraft by expelling hot gases produced by the combustion of fuel in the engine. Here's how it works:
- Air Intake: Air enters the engine through an inlet called the air intake.
- Compressor: The compressor compresses the incoming air, increasing its pressure.
- Combustor: The compressed air is mixed with fuel in the combustor and ignited. This combustion process generates high-temperature and high-pressure gases.
- Turbine: The hot gases expand and flow through the turbine, causing it to rotate. The rotating turbine provides the power to drive the compressor.
- Exhaust: The exhaust gases are then expelled through the exhaust nozzle, generating thrust that propels the aircraft forward.
2. Turbofan:
A turbofan engine is a more advanced type of jet engine that incorporates a fan and bypass duct to improve efficiency. Here's an explanation of how it works:
- Fan: The turbofan engine has a large fan mounted in front of the engine core. The fan draws in a significant amount of air and accelerates it.
- Bypass Duct: A portion of the air drawn in bypasses the engine core and flows through the bypass duct.
- Core Engine: The core engine consists of the compressor, combustor, and turbine, similar to a turbojet engine.
- Mixing and Expansion: The hot exhaust gases from the core engine mix with the bypass air in the mixing section. This combined airflow expands and accelerates as it exits through the exhaust nozzle, generating thrust.
The turbofan engine's bypass design provides several advantages over the turbojet, including improved fuel efficiency, reduced noise, and increased overall performance.
