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Course Co-ordinated by IIT Bombay
Coordinators
 
Prof. Bhaskar Roy
IIT Bombay

 
Prof. A M Pradeep
IIT Bombay

 

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Untitled Document
Introduction to Aircraft Jet Propulsion. 
Jet Engine Cycles  : Thermodynamic Analysis of real cycles.
Compressors and Turbines.
Combustion Systems.
Intakes and Propelling Nozzles.
Aircraft Engine Installed Performance, Sizing & Matching.
Ramjets, Scramjets and Pulsejets.

S.No

Topics

Instructor

Lectures

 

1

 

Introduction to Aircraft Propulsion.

 

 

 

 

 

 

Bhaskar Roy

 

 

 

 

 

4 lectures

1.1

The Gas Turbine Engine development for Aircraft Propulsion.

1.2

How the jet engines makes thrust : conceptual basis.

1.3

Jet engine performance parameters ; Thrust, SFC, Efficiencies.

1.4

Simple Turbojet and Reheat engines: Low and High bypass Turbofan engines.

1.5

Single and Multi-spool  Gas Turbine based propulsive devices.

 

2

 

Real Cycle Thermodynamic Analysis.

 

 

 

 

 

 

A M Pradeep

 

 

 

 

 

4 lectures and 2 tutorials

2.1

Introduction to Real Cycles.

2.1.1

Ideal and Real Brayton cycles.

2.1.2

Jet engine cycles for aircraft propulsion.

2.1.3

Cycle components and component performance: Intake, Compressors & Turbines , Combustion chamber, Afterburner, Nozzle.

2.1.4

Analysis of engine real cycles: Turbojet cycle, Reheat engine cycle, Turbofan engine cycle, Turboprop Engines.

2.1.5

Advanced jet engine cycles: Variable cycle engines.

 

3

 

Fundamentals of Rotating components.

 

 

 

 

Bhaskar Roy

 

 

 

 

2 lectures

3.1

Thermodynamics of  Compressors and Turbines.

3.2

Development of parameters for compressor and Turbines.

 

4

 

Compressors and Turbines.

 

 

 

4.1

Axial and centrifugal Compressors:

 

 

 

 

A M Pradeep

 

 

 

 

4 lectures and 1 tutorial

4.1.1

A simple two dimensional analytical model.

4.1.2

2-D (cascade) analysis; Loss and Blade performance estimation.

4.1.3

Simple Free Vortex theory.

4.1.4

Single and Multi-stage Axial compressor characteristics.

4.1.5

Elements of centrifugal compressor.

4.1.5.1

Inlet Duct;  Impeller; Slip factor and  Concept of  Rothalpy.

4.1.6

Centrifugal Compressor Characteristics:  Surging and  Choking.

4.2

Axial and Radial flow turbines.

 

 

 

Bhaskar Roy

 

 

 

3 lectures and 1 tutorial

4.2.1

Introduction.

4.2.2

Turbine stage :   Turbine Blade 2-D (cascade) analysis; Work Done, Degree of Reaction, Losses and Efficiency.

4.2.3

Multi-staging of Turbine.

4.2.4

Turbine Cooling Technology.

4.2.5

Radial Turbine Aerodynamics and Thermodynamics.

4.2.6

Losses in radial turbine and efficiency.

 

5

 

Combustion Systems.

 

 

 

 

 

 

Bhaskar Roy

 

 

 

 

 

3 lectures

5.1

Introduction : Various types of combustion chambers in aircraft engines.

5.2

Combustion Mechanism and  Important Combustion parameters.

5.3

Development of a practical combustion system and design parameters.

5.4

Pressure losses ; Combustion efficiency; Combustion intensity.

5.5

Combustion Stability limits and Instability.

5.6

Fuels and their properties and Fuel injection systems.

 

6

 

Intakes and Propelling Nozzles.

 

 

 

 

 

 

 

 

A M Pradeep

 

 

 

 

 

 

 

4 lectures and 1 tutorial

6.1

Intakes.

6.1.1

Requirements of an Intake for Powerplant: Transport, Military Aircraft.

6.1.2

Subsonic Intakes, Transonic and Supersonic Intakes.

6.1.3

Axi-symmetric and Assymmetric Intakes.

6.1.4

Aircraft Intake design considerations.

6.2

Propelling Nozzles.

6.2.1

Energy conversion in a Nozzle.

6.2.2

Nozzle design considerations: fixed and variable geometry nozzles.

6.2.3

C-D nozzle and their use.

 

7

 

Engine Installed Performance, Sizing & Matching.

 

 

 

 

 

 

 

 

 

Bhaskar Roy

 

 

 

 

 

 

 

 

4 lectures and 1 tutorial

7.1

Introduction to engine component sizing.

7.2

Installed Performance of Engine.

7.3

Dimensional analysis for component matching.

7.4

Engine - Design Point Operations.

7.5

Engine Off  Design Operations.

7.5.1

Single Shaft Engine.

7.5.2

Two-Shaft : Turbojet & Turbo-prop, Turbo-shaft Engines.

7.5.3

The Engine Operating Lines

7.5.4

Operational details of multiple shaft engines.

7.6

Aircraft Engine component matching:

7.6.1

Intake-Compressor matching; Turbine-Nozzle matching.

7.6.2

Compressor -Turbine matching : Single and Multi-spool.

7.6.3

Free Turbine and Unducted Fan / Propeller matching.

 

8

 

Ramjets, Pulsejets and Scramjets.

 

 

 

 

 

A M Pradeep and Bhaskar Roy

 

 

 

 

4 lectures and 1 tutorial

8.1

Use of Ramjets and Pulsejets in Aircraft propulsion.

8.2

Operating Principles.

8.3

Thermodynamic Cycle.

8.4

Performance Parameters.

8.5

Design and Performance of a Ramjet.

8.6

Flow in Diffusers, Combustors and Nozzles.

8.7

Principles of Scramjet Engines.

 

9

 

Future of Aircraft Propulsion.

 

A M Pradeep and Bhaskar Roy

 

1 lecture

                                                 Total No of Lecture and Tutorial (33+7)

40 hours


  1. Introduction to Aerospace Propulsion, orテつ A course in Engineering Thermodynamics.

  1. Kroes Michael J; Wild Thomas W; Aircraft Powerplants; 2010(7 Ed), Tata-Mcgraw-Hill.

  2. Hill Philip, Peterson Carl,テつ Mechanicsテつ and Thermodynamics of Propulsion, 1992,テつ Addison Wesly,.

  3. Royテつ Bhaskar, Aircraft Propulsion, 2008, Elsevier (India),

  4. Mattingly J D ,テつテつ Elements of Propulsion - Gas Turbines and Rockets, 2006, AIAA Education series.

  5. El-Sayed Ahmed, Aircraft Propulsion and gas Turbine Engines , 2008, Taylor and Francis (CRC press).

  6. Saravanamuttoo, H.I.H., Rogers G.F.C., Cohen H. Gas Turbine Theory, 2001, Pearson.


  1. http://mme.iitm.ac.in/gphani/transport/tplinks

  1. Oates Gordon C; Aerothermodynamics of Aircraft Engine Components, 1985, AIAA Education Series.

  2. Mattingly J D; Heiser W H; Daley; Aircraft Engine DesignテつAIAA Education series, 1987.



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