The course imparts the students a specialized preparation in the propulsion field extended to the most advanced or more recently introduced technologies, with particular emphasis on electric propulsion concepts and systems, and provides them with the knowledge concerning the principles of operation, the typical performance, the critical aspects and the state of development of electric thrusters for space applications needed to address the main problems of analysis, design, integration and usage.
The final exam aims at evaluating the student preparation on the topics covered by the lectures with specific reference to the following aspects: - knowledge acquisition; - critical understanding; - capability of using in a creative and constructive way the information from the course lectures to develop original solutions to an engineering problem. The student will be assessed on his/her demonstrated ability to: - illustrate the derivation from first principles of his/her solution to the given problem(s) by the introduction of the relevant simplifications and/or approximation; - justify the introduction of the simplifications and/or approximations used in the derivation; - assess and discuss the expected level of accuracy and limits of application of the proposed solution. The student must be able to illustrate the reading matter thoughtfully, clearly, synthetically, effectively and with propriety of expression.
Methods:
Further information:
The final exam consist in an interview where the student will typically be required to: – develop in writing of the solution to an original problem addressable by using the information from the course lectures in a creative and constructive way; - illustrate orally or answer questions on one or more topics of the course. Both aspects will be weighted equally (50%).
By the end of the course:
Students should have a good background of basic courses in physics and mathematics, and they should have acquired a good basic knowledge of plasma dynamics, obtained by attending the preparatory course Electric Propulsion I
Delivery: face to face / teleconferencing, depending on circumstances
Learning activities:
Attendance: Advised
Teaching methods:
Introduction and history of Electric Propulsion. General theory of electric thrusters. Fundamentals of plasma acceleration. MHD Channel theory. Electromagnetic thrusters: Magnetoplasmadynamic thrusters and Pulsed Plasma Thrusters. Hall effect thrusters. Electrostatic thrusters: gridded ion engines, FEEP and Colloid thrusters. Electrothermal thruster: Arcjets, Resistojets. Other types of advanced thrusters. Low thrust mission analysis and design.
Required reading: Course notes and homeworks from the instructor Recommended reading: • Jahn,R.G.,"Physics of Electric Propulsion",Dover,2006. • Goebels,D.M.,Katz,I.,"Fundamentals of Electric Propulsion: Ion and Hall Thrusters", Wiley, 2008.