Module information on this degree can be found below, separated by year of study.

The module information below applies for the current academic year. The academic year runs from August to July; the 'current year' switches over at the end of July.

Students select optional courses subject to rules specified in the Mechanical Engineering Student Handbook,  for example at most three Design and Business courses. Please note that numbers are limited on some optional courses and selection criteria will apply.

Aircraft Engine Technology

Module aims

  • To extend the principles of thermodynamics, fluid mechanics and structural analysis to the design of an axial-flow jet engine
  • To develop an appreciation for aircraft powerplant design in the context of the duty and mission of a civil or combat aircraft
  • To provide an industrial context by a visit (if possible) to Rolls-Royce.

ECTS units:    12   
Contributing to Course Elements: 12 to ME4-LCTVS Electives

Learning outcomes

On successfully completing this module, students will be able to:

  • Discuss, in an industrial context and in appropriate vocabulary, technical issues related to current practice in the design of aircraft powerplant
  • Interpret a definition of civil or military aircraft duty and mission as a specification for its propulsion system
  • Apply thermodynamics, fluid mechanics and structural analysis to the design of jet engine components
  • Demonstrate organisational, information gathering, problem solving and information technology skills within individual and group projects

Module syllabus

  • Fundamentals of aircraft propulsion: requirements and background; aerodynamics of the aircraft; creation of thrust in a jet engine; the gas turbine cycle; principle and layout of jet engines; elementary fluid mechanics of compressible gases; selection of bypass ratio; dynamic scaling and dimensional analysis; component characteristics; engine matching for off design (including variable property effects).
  • Turbomachinery aerodynamics: axial compressor and turbine description and design parameters; number of stages and loading considerations; velocity triangles; analysis of conditions away from mid-span; blade profile definition (simple sketch with main features); introduction to turbine blade cooling.
  • Elementary structural dynamics and vibration: blade and disc stresses; fatigue life estimation; turbine blade creep; introduction to vibration analysis.

Teaching methods

20Duration: Autumn and Spring terms (21 weeks)

Lectures: 2 per week

Projects:

  • Task 1: Specification of engine pressure ratios and temperature. Report 15 pages.
  • Task 2: Engine sizing, key dimensions, number of compressor and turbine stages, sketch of engine. Report 10 pages (engine drawing and calculations).
  • Task 3:Final report, with blade designs and some stress calulations for discs. Report: 35 pages + 10 pages of appendices.


Summary of student timetabled hours

Autumn

Spring

Summer

Lectures

20

22

Tutorials

Tutorials: to be adivised by course leader as appropriate.

Total

42

Expected private study time

10 h per week (including project work, external visits etc.), plus exam revision

Assessments

Written examinations:

Date (approx.)

Max. mark

Pass mark

Aircraft Engine Technology (3h)

 A handbook of Data and Formulae is provided.


This is a CLOSED BOOK Examination

April/ May

200

n/a

 

Coursework (including progress tests, oral presentations etc.)

Submission date

Max. mark

Pass mark

Submission

Feedback

Task 1

Returned with a mark and written comments, then discussed in class

30/01/18

60

n/a

Task 2

Ditto

20/02/18

40

n/a

Task 3

Ditto

13/03/18

100

n/a

Total

400

Reading list

Core

Supplementary

Module leaders

Professor Ricardo Martinez-Botas