how turbojet works and a brief explanation

2. CONTENTS
 INTRODUCTION.
 HISTORY
 DESIGN OF ENGINE
 COMPONENTS
 WORKING OF ENGINE
 PRINCIPLE OF
OPERATION
 MERITS AND
DEMERITS.
 APPLICATIONS

3. Turbojet Engine
A jet engine having a turbine-
driven compressor and developing thrust from
the exhaust of hot gases.

4. HEINKEL HE-First practical
Aircraft to use TURBOJET
POWER-1938
MESSERSCHMITT ME GLOSTER METEOR
First two operational Aircrafts to use TURBO POWER-1944

5. • TURBINE
• NOZZLE
• INLET
• COMPRESSORS
• COMBUSTION CHAMBER

6. INLETS COMPRESSORS
COMBUSTION CHAMBER TURBINE NOZZLE

7. This high pressure is utilized to produce
more thrust for high speed TURBOJETS
Kinetic Energy Pressurized Air

8. Working of a TURBOJET
ENGINE

9. Ideal Brayton cycle comprise of the following Thermodynamics
Processes:
Isentropic Compression Process.
Isobaric Heat Addition Process.
Isentropic Expansion Process.
Isobaric Heat Rejection Process.
BRAYTON CYCLE

10.  Very high power-to-weight ratio.
 Compact than most reciprocating
engines of the same power rating.
 Fewer moving parts than reciprocating
engines.
 Low operating pressures.
 High operation speeds.
 Low lubricating oil cost and
consumption.
7 CYLINDER BMW 801 AIRCRAFT ENGINE

11.  Cost
 Longer startup than reciprocating
engines
 Less responsive to changes in power
demand compared to reciprocating
engines.
 Poor takeoff characteristics at low speeds
 At low speeds the fuel consumption is
more

12.  Turbojet engines had a significant impact
on commercial aviation.

13.  British engines such as the Rolls-Royce
Welland used better materials giving improved
durability.

14.  Jet engines have propelled high speed cars,
particularly drag racers, with the all-time
record held by a rocket car.