Checking date: 28/04/2023

Course: 2023/2024

Propulsion systems performance and design
Master in Aeronautical Engineering / Máster Universitario en Ingeniería Aeronáutica (Plan: 328 - Estudio: 296)

Coordinating teacher: DISCETTI , STEFANO

Department assigned to the subject: Aerospace Engineering Department

Type: Compulsory
ECTS Credits: 6.0 ECTS


Requirements (Subjects that are assumed to be known)
Students are expected to have basic knowledge of aerospace propulsion systems and turbomachinery.
The main objective of the course is to develop the ability to design and calculate the performance of air-breathing engines and their components. The students are expected to be able to: - Understand the processes of heat and mass transfer applied to the aerospace propulsion systems - Analyze the performances of the aerospace propulsion systems. - Select and design the most suitable powerplant for an aerospace vehicle according to its mission, including the design of the subsystems composing the engine. - Test the correct operation of the turbomachinery as part of an aerospace propulsion system.
Skills and learning outcomes
Description of contents: programme
1. Review of requirements of engine components 2. The engine design process a. The request for proposal b. Constraint analysis and mission analysis c. Parametric cycle analysis i. Turbojet ii. Turbojet with afterburner iii. Turbofan with mixed/unmixed stream d. Performance cycle analysis i. Off-design behavior ii. Component matching iii. Installed performances e. Ramjets and scramjets 3. Sensors, instrumentation and control a. Control systems requirements and strategy b. Basic engine control functions 4. Lubrication and cooling a. Oil systems: lube supply, tank, piping, scavenge system. b. Secondary Air System c. Turbine heat transfer, film cooling, internal cooling (jet impingement, rib-turbulated, pin-fin). 5. Bearing and seals a. Mainshaft bearing types; b. Fatigue life considerations; c. Dynamic seals types (labyrinth seals, carbon seals) 6. Structural analysis a. Fundamentals of rotordynamics b. Balancing procedures and vibrations suppression. c. Elements of turbomachinery flutter. 7. Engine testing and certification
Learning activities and methodology
LEARNING ACTIVITIES AF1 - Theoretical session AF2 - Practical session AF3 - Computer room practical session AF4 - Laboratory sessions AF5 - Individual student work AF6 - Tutorials AF7 - Partial and final exams TEACHING METHODOLOGY MD1 - Class lectures by the professor with the support of computer and audiovisual media, in which the main concepts of the subject are developed and the bibliography is provided to complement the student's learning. MD3 - Resolution of practical cases, problems, etc. posed by the teacher individually or in groups. MD5 - Preparation of reports individually or in groups.
Assessment System
  • % end-of-term-examination 60
  • % of continuous assessment (assigments, laboratory, practicals...) 40
Calendar of Continuous assessment
Basic Bibliography
  • Mattingly J.D., Heiser W.H., Pratt D.T.. Aircraft Engine Design. AIAA EDUCATION SERIES J. S. Przemieniecki Series Editor-in-Chief. 2003
Additional Bibliography
  • Boyce M.P.. Gas Turbine Engineering Handbook. Butterworth-Heinemann. 2011
  • Kerrebrock J.L.. Aircraft Engines and Gas Turbines. The MIT Press. 1992
  • Oates G.C.. Aerothermodynamics of Aircraft Engine Components . AIAA. 1985
  • Walsh P.P., Fletcher P.. Gas Turbine Performance. Blackwell Science Inc. 2004
  • . The Jet Engine. Rolls Royce Technical Publications. 1996

The course syllabus may change due academic events or other reasons.