| Code |
10374
|
| Year |
3
|
| Semester |
S2
|
| ECTS Credits |
6
|
| Workload |
TP(60H)
|
| Scientific area |
Aeronautics and Astronautics
|
|
Entry requirements |
.
|
|
Mode of delivery |
This unit classes are theoretical-practical. Theoretical foundations are presented initially and after the practical applications, with examples of calculation. Presentations are made using a computer and video projector. Calculations are made at the white board. All documentation is provided to the students on an e-learning platform.
|
|
Work placements |
There is no work placement.
|
|
Learning outcomes |
Gas Turbines
Objectives
1. Understanding of the operating cycle of a gas turbine.
2. Develop the ability to determine the performance of engine components for gas turbine. 3. Develop capacities to analyse the actual cycle of a gas turbine engine.
4. Develop capacity for assessing the performance when operation off the design point.
5. To know the main problems of gas turbine cooling.
6. Develop ability to analyse the noise of engines and to know possible solutions. Competences: Ability to analyse on and off¬design operation of a gas turbine.
|
|
Syllabus |
Gas Turbines
Operating cycle of a jet engine. Ideal behaviour of components. Effect of firing at a finite Mach number. Turbojet with afterburner. Turbofan with separate exhaust flows. Turbo¬fan mixed with exhaust flows. Mixer ideal constant pressure. Turbofan ideal to afterburner
Performance of gas turbine components. Propulsion equation. Specific fuel consumption. Maximum thrust. Calculation with average values. Gas turbine components: intake, compressor, combustor, turbine and propelling nozzle
Actual cycle of a gas turbine engine. Turbojet, turbofan, turbo¬propeller, turbo¬shaft
Off design performance of turbojet, turbofan, turbo¬propeller and turbo¬shaft engines. Characteristic curves of components
Cooling and noise in gas turbines
|
|
Main Bibliography |
Gas Turbines
El-Sayed, Ahmed, Aircraft Propulsion and Gas Turbine Engines, CRC Press. Saravanamuttoo, H.; Rogers, G.; Cohen, H.; Straznicky, P.; Gas Turbine Theory, Prentice Hall. Oates, G. C., Aerothermodynamics of Gas Turbine and Rocket Propulsion, AIAA.
Oates, G. C. (Ed.), Aerothermodynamics of Aircraft Engine Components, AIAA.
The Jet Engine, The Technical Publications Department, Rolls-Royce plc.
Mattingly, J. D., Heiser, W. H., Daley, D. H., Aircraft Engine Design, AIAA.
|
|
Teaching Methodologies and Assessment Criteria |
The classes of this course unit are theoretical-practical. The theoretical foundations are presented initially and then the practical applications, with examples of calculation. Presentations are made using a computer and video projector. Calculations of the practical component are done in the table. All documentation is provided to students on an e-learning platform.
Periodic assessment is based on two exams.
|
|
Language |
Portuguese. Tutorial support is available in English.
|