Introduction: Classification of power plants - Methods of aircraft propulsion – Propulsive efficiency – Specific fuel consumption - Thrust and power- Factors affecting thrust and power.
Illustration of working of Gas turbine engine - Characteristics of turboprop, turbofan and turbojet, Ram jet, Scram jet – Methods of Thrust augmentation.
Introduction to rocket propulsion: Classification and applications of rockets – Reaction principle – Thrust equation – Classification of rockets based on propellants used – solid, liquid and hybrid – Comparison of these engines with special reference to rocket performance – electric propulsion – classification- electro thermal – electro static – electromagnetic thrusters- geometries of Ion thrusters- beam/plume characteristics – hall thrusters.
Fundamentals and Definitions – Thrust, Exhaust Velocity, Energy and efficiencies, multiple propulsion systems, typical performance values, variable thrust and simple problems.
Liquid Propellant rocket engine: Types of propellants, propellant tanks, propellant feed systems, gas pressure feed systems, tank pressurization, turbopump feed system, rocket engines for maneuvering and orbit adjustments.
Liquid Propellants: propellant properties, liquid oxidizers, liquid fuels, liquid monopropellants, gaseous propellant, safety and environment concern. Combustion process and instability.
Solid Propellant Rocket engine: Basic relations and propellant burning rate, performance issues, propellant grain and grain configuration, propellant grain stress and strain, altitude control and side manoeuvres with solid propellant rocket motors
Solid Propellants: Classification, propellant characteristics, hazards, propellant ingredients, other propellant categories, l
Nozzle Theory and Thermodynamics Relations: review of thermodynamics relations, ideal rocket propulsion systems, isentropic flow through nozzles, nozzle configuration, real nozzles, nozzle alignment, over expanded, under expanded nozzles and optimum expansion in nozzles
Thrust Chambers: Injectors, flow characteristics, factors influencing injection behavior, heat transfer analysis, starting and ignition, life of thrust chambers, random variable thrust, sample thrust chamber design analysis, Thrust Vector Control with single nozzle and multiple nozzles. Integration with vehicle.
Course Outcomes:
At the end of the course the student will be able to:
1. CO1: Analyze the engineering concepts of air breathing propulsion systems.
2. CO2: Distinguish the different types of compressors.
3. CO3: Choose the propellant based on the application.
Question paper pattern:
• The question paper will have ten full questions carrying equal marks.
• Each full question will be for 20 marks.
• There will be two full questions (with a maximum of four sub- questions) from each module.
• Each full question will have sub- question covering all the topics under a module.
• The students will have to answer five full questions, selecting one full question from each module.
Textbooks
1 Rocket Propulsion Elements G. P. Sutton Wiley India Pvt Ltd 7th Edition,2010
2 Gas Turbine Theory Cohen, H. Rogers, G.F.C. and Saravanamuttoo H.I.H DORLING KINDERSLEY 5th edition,2002
Reference Books
1 Introduction to Rocket Propulsion James R Church of Care 2018
2 Rocket and Spacecraft Propulsion Martin J l Turner Springer Third Edition
3 Aerothermodynamics of gas turbines and rocket prolusion G.C. Oates AIAA Education Series Third Edition
4 Mechanics and Thermodynamics of Propulsion Hill,P.G. and Peterson, C.R Pearson 2nd edition,2009