This document discusses jet engines and provides a comparison between turbojet and turbofan engines. It defines a jet engine as a reaction engine that generates thrust by discharging a fast moving jet according to Newton's laws of motion. It then describes the key components of a basic jet engine, including the multi-stage compressor, combustor, high and low pressure turbines, and nozzle. The document compares turbojet and turbofan engines, noting that while turbojets generate more thrust due to higher exhaust speeds and have a simpler design, turbofans are more efficient and quieter, making them more suitable for commercial use.

1. Hello!
I am ROHIT DEY,
ME 3rd
year..

2. TURBOJET AND
TURBOFAN
ENGINE

3. WHAT IS A JET
ENGINE?1

4. “
A jet engine is a reaction engine
discharging a fast moving jet that
generates thrust by jet porpulsion in
accordance with newton’s laws of
motion.

5. TURBOFAN JET ENGINE

6. HISTORY

7. COMPONENTS OF
BASIC JET ENGINE
1) Multi stage
Compressor
2) Combustor 3) High and Low
Pressure Turbine
4) Nozzle

11. JET ENGINES FOLLOWS BRAYTON
CYCLE

12. EFFICIENCY

13. COMPARISION BETWEEN
TURBOJET AND TURBOFAN
TURBOJET ENGINE
 Generates more Thrust due
to high exhaust speed.
 Low frontal area.
 Relative simplicity.
TURBOFAN ENGINE
 More efficient thus
commercially used.
 Much more quiet.
 Subsonic speed

14. Uses of Turbojet and
Turbofan Engines
 Military graded Fighter jets
 Cruise missiles
 Commercial aeroplanes.

15. Thanks!
Any questions?