TYPES OF JET

PROPULSION ENGINE

FACULTY OF MECHANICAL &

MANUFACTURING ENGINEERING

AIRCRAFT PROPULSION BDU 20203

By:

AMAL IQMAL BIN ADNAN

AD110189

2BDC

Lecture:

Dr. Mohammad Fahmi Bin Abdul Ghafir

http://dryicons.com/free-graphics/preview/blue-background

TURBOJET

ENGINE

http://purpleopurple.com/tourism/modern-wonders/concorde.html

SINGLE SPOOL TURBOJET

Optional: Afterburner, Convergent or Con/Di Nozzle

Compressors Turbine Combustion

Chamber

Inlet

•Basic turbojet engine invented by Sir Frank Whittle and Dr. Hans von Ohain •Turbojet engine is very powerful engine ever.

Nozzle/Exhaust

SINGLE SPOOL TURBOJET

WITH TWO COMPRESSORS

Axial

Compressors

Turbines

Burner

Nozzle/Exhaust Inlet

Centrifugal

Compressors

TWO SPOOL TURBOJET

Optional: Afterburner, Convergent or Con/Di Nozzle

HP

Compressors

HP Turbine

Combustor

Nozzle/Exhaust Inlet

LP

Compressors

LP Turbines

TURBOFAN

ENGINE

http://www.topaviationsites.net/news/the-boeing-787-dreamliner

SINGLE SPOOL MIXED FLOW

TURBOFAN

Optional: Afterburner, Convergent or Con/Di Nozzle

Compressors Turbines Combustion

Chamber Nozzle/Exhaust

Inlet

•At nozzle exit, fluid flow at primary and secondary nozzle are mixed.

TWO SPOOL TURBOFAN

LOW BYPASS RATIO

HP

Compressors

LP Turbines Burner

Divergent

Nozzle Air Intake

HP Turbine

LP

Compressors

THREE SPOOL TURBOFAN

LOW BYPASS RATIO

HP

Compressors

LP Turbine

Combustor

Divergent

Nozzle Air Inlet

HP Turbine

LP

Compressor

IP Turbine

IP

Compressors

VARIABLE CYCLE ENGINE

Optional: Afterburner, Convergent or Con/Di Nozzle

•A variable cycle engine (VCE) is an engine that is designed to operate efficiently under mixed flight conditions, such as subsonic, transonic and supersonic.

TWO SPOOL TURBOFAN

Fan

Nozzles Diffuser

HP

Compressors

LP Turbines

Combustion

Chamber

HP Turbine

2

1

GEARED TURBOFAN

TYPE A

HP

Compressors

LP Turbines

Burner

Diffuser

LP

Compressors

HP Turbine

Fan

Gear

Nozzles 2

1

GEARED TURBOFAN

TYPE B

HP

Compressors

LP Turbines

Combustor

Diffuser

LP

Compressors

HP Turbine

Fan

Gear

Nozzles 2

1

Centrifugal

Compressors

THREE SPOOL TURBOFAN

HP

Compressors

LP Turbines

Combustion

Chamber

Diffuser

HP Turbine

LP Fan

IP Turbine IP

Compressors

Nozzles 2

1

INTERCOOLED RECUPERATED

TURBOFAN

Optional: Intercooler, Recuperator

HP

Compressors

LP Turbines

Burner

Diffuser

HP Turbine

LP Fan

IP Turbine IP

Compressors

Intercooled

Nozzles 2

1

MIXED FLOW TURBOFAN

HP

Compressors

LP Turbines

Combustor

Mixed Nozzle Diffuser

HP Turbine

Fan

LP

Compressors

GEARED MIXED FLOW

TURBOFAN A

HP

Compressors

LP Turbines

Combustion

Chamber

Exhaust Diffuser

HP Turbine

Fan

Gear

LP

Compressors

GEARED MIXED FLOW

TURBOFAN B

HP

Compressors

LP Turbines

Burner

Nozzles

Diffuser

HP Turbine

LP Fan

LP

Compressors

Gear

Centrifugal

Compressors

THREE SPOOL MIXED FLOW

TURBOFAN

HP

Compressors

LP Turbines

Combustor

Nozzles Diffuser

HP Turbine

LP Fan

IP Turbine

IP

Compressors

TURBOPROP

ENGINE

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SINGLE SPOOL TURBOPROP

Optional: Recuperator

Compressors

Combustion

Chamber

Exhaust

Turbines

Propeller

Gear

Intake

TWO SPOOL TURBOPROP

Optional: Recuperator

HP

Compressors

LP Turbines

Burner

Exhaust

Intake

HP Turbine

Propeller

Gear

TURBOPROP

BOOSTER ON HIGH PRESSURE SPOOL

Optional: Intercooler, Recuperator, Sequential Combustion

HP

Compressors

LP Turbines

Combustor

Exhaust

Intake

HP Turbine

Propeller

Gear

TURBOPROP

BOOSTER ON LOW PRESSURE SPOOL

Optional: Intercooler, Recuperator, Sequential Combustion

HP

Compressors

LP Turbines Combustion

Chamber

Exhaust Intake

HP Turbine

Propeller

Gear

LP

Compressors

THREE SPOOL TURBOPROP

HP

Compressors

LP Turbines

Burner

Nozzle/Exhaust Intake

HP Turbine

Propeller

IP Turbine

IP

Compressors

Gear

TURBOSHAFT

ENGINE

http://stuckattheairport.com/2008/09/10/cheap-helicopter-rides-between-jfk-and-manhattan-on-delta

TURBOSHAFT ENGINE

FOR POWERING HELICOPTER

RAMJET

http://www.urban75.net/forums/threads/309th-aerospace-maintenance-and-regeneration-group-aka-plane-graveyard.298730/

http://www.wvi.com/~sr71webmaster/schematic.html

RAMJET

(A GAS TURBINE WITHOUT COMPRESSOR AND TURBINE)

Optional: Convergent or Con/Di Nozzle

•Most powerful engine and the highest thrust produces than turbojet but it work most efficiently at speeds around Mach 3.

SCRAMJET

OPERATES AT MACH 4 AND ABOVE

NOTATION

LP = Low Pressure

IP = Intermediate Pressure

HP = High Pressure

1 = Primary Nozzle

2 = Secondary Nozzle

= Low Pressure Shaft

= Intermediate Pressure Shaft

= High Pressure Shaft

REFERENCES

1. http://www.gasturb.de

2. http://muhammadhuzaim.blogspot.com/2010/06/turbin

e-engine-lessons-cont.html

3. http://www.flightlearnings.com/2010/03/06/types-of-

turbine-engines

4. http://www.ifs.tohoku.ac.jp/enerdyn/en/en_researches_

supersonic.htm

5. http://www.okieboat.com/How%20the%20ramjet%20w

orks.html

6. http://en.wikipedia.org/wiki/Variable_Cycle_Engine

7. http://spaceflight.esa.int/impress/text/pop-up/trent.html