JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Pre-Requisites

High Speed Aerodynamics

Course Objectives:

• To study the basic principles and applications of rocket propulsion
• To know the choice of propellants and basic performance parameters in chemical propellants and propulsion systems
• To know the electric rocket propulsion and advanced rocket propulsion techniques.

Course Outcomes:

• Working principle of rockets
• Different types of propulsion system

UNIT - I

Fundamentals of Rocket Propulsion: History and evolution of rockets. Rocket equation, Definitions. Performance parameters, Staging and Clustering, Classification of rockets. Rocket nozzle and performance, Nozzle area ratio, conical nozzle and contour nozzle, Under and over expanded nozzles. Flow separation in nozzles, unconventional nozzles. Mass flow rate, Characteristic velocity, Thrust coefficient, Efficiencies, Specific impulse. Numerical problems.

UNIT - II

Chemical Propellants: Molecular mass, specific heat ratio, Energy release during combustion, Stoichiometry & mixture ratio, Criterion for choice of propellant, Solid propellants, requirement, composition and processing. Liquid propellants, energy content, storability, Types and classifications. Numerical problems

UNIT - III

Solid Propulsion Systems: Classifications- Booster stage and upper stage rockets. Hardware components and functions. Propellant grain configuration and applications. Burn rate, burn rate index for stable operation, mechanism of burning, ignition and igniters types. Action time and burn time. Factors influencing burn rates. Thrust vector control. Numerical problems.

UNIT - IV

Liquid Propulsion Systems: Classifications- Booster stage and upper stage rockets. Hardware components and functions. Thrust chamber and its cooling, injectors and types, Propellant feed systems. Turbo pumps. Bi - propellant rockets. Mono propellant thrusters, Cryogenic propulsion system, special features of cryogenic systems. Numerical problems.

UNIT - V

Advance Propulsion Techniques: Hybrid propellants and gelled propellants. Electrical rockets, types and working principle. Nuclear rockets, Solar sail, Concepts of some advance propulsion systems. Numerical problems.

TEXT BOOKS:

• 1. Ramamurthi. K: Rocket propulsion. Macmillan Publishing Co, India. First edition. 2010.
• 2. Hill. P.G. and Peterson. C.R: Mechanics and thermodynamics of propulsion. 2nd edition. Pearson Education. 1999.

REFERENCE BOOK:

• 1. Sutton. G.P. and Biblarz. O.: Rocket propulsion elements. Wiley India Pvt Ltd. 7th edition 2003.