# PROPULSION 1:
UNIT I – PRINCIPLES OF AIR BREATHING ENGINES
- Operating Principles of Piston Engines
- Thermal Efficiency Calculations
- Classification of Piston Engines
- Illustration of Working of Gas Turbine Engines
- Factors Affecting Thrust
- Methods of Thrust Augmentation
- Performance Parameters of Jet Engines
- Gas Turbine
UNIT II – JET ENGINE INTAKES AND EXHAUST NOZZLES
- Ram Effect, Internal Flow and Stall in Subsonic Inlets
- Relation Between Minimum Area Ratio and External Deceleration Ratio
- Diffuser Performance
- Modes of Operation
- Supersonic Inlets
- Starting Problem on Supersonic Inlets
- Shock Swallowing by Area Variation
- Real Flow Through Nozzles and Nozzle Efficiency
- Losses in Nozzles
- Ejector and Variable Area Nozzles
- Over-Under Expanded Nozzle
- Interaction of Nozzle Flow With Adjacent Surfaces
- Nozzle Choking
- Thrust Reversal
UNIT III – JET ENGINE COMBUSTION CHAMBERS
- Chemistry of Combustion
- Combustion Equations
- Combustion Chamber Process
- Classification of Combustion Chambers
- Factors Affecting Combustion Chamber Design
- Combustion Chamber Performance
- Effect of Operating Variables on Performance
- Flame Holder
- Flame Stabilization
- Cooling Process
- Materials
- Aircraft Fuels
- HHV
- LHV
- Orsat Apparatus
UNIT IV – JET ENGINE COMPRESSORS
- Euler’s Turbo Machinery Equation
- Principle Operation of Centrifugal Compressor
- Principle Operation of Axial Flow Compressor
- Work Done and Pressure Rise
- Velocity Diagrams
- Degree of Reaction
- Free Vortex and Constant Reaction Designs of Axial Flow Compressor
- Performance Parameters Axial Flow Compressors
- Stage Efficiency
UNIT V – JET ENGINE TURBINES
- Principle of Operation of Axial Flow Turbines
- Limitations of Radial Flow Turbines
- Work Done and Pressure Rise
- Velocity Diagrams
- Degree of Reaction
- Constant Nozzle Angle Designs
- Performance Parameters of Axial Flow Turbine
- Turbine Blade Cooling Methods
- Stage Efficiency Calculations
- Basic Blade Profile Design Considerations
- Matching of Compressor and Turbine